21148049650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21419}}^1$

素因数の和:21489

約数の個数: 144

約数和(自身を含む): 50869244160

約数和(自身を除く): 29721194510

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 31, 35, 49, 50, 62, 65, 70, 91, 98, 130, 155, 175, 182, 217, 245, 310, 325, 350, 403, 434, 455, 490, 637, 650, 775, 806, 910, 1085, 1225, 1274, 1519, 1550, 2015, 2170, 2275, 2450, 2821, 3038, 3185, 4030, 4550, 5425, 5642, 6370, 7595, 10075, 10850, 14105, 15190, 15925, 19747, 20150, 21419, 28210, 31850, 37975, 39494, 42838, 70525, 75950, 98735, 107095, 141050, 149933, 197470, 214190, 278447, 299866, 493675, 535475, 556894, 663989, 749665, 987350, 1049531, 1070950, 1327978, 1392235, 1499330, 1949129, 2099062, 2784470, 3319945, 3748325, 3898258, 4647923, 5247655, 6639890, 6961175, 7496650, 8631857, 9295846, 9745645, 10495310, 13643903, 13922350, 16599725, 17263714, 19491290, 23239615, 26238275, 27287806, 32535461, 33199450, 43159285, 46479230, 48728225, 52476550, 60422999, 65070922, 68219515, 86318570, 97456450, 116198075, 120845998, 136439030, 162677305, 215796425, 232396150, 302114995, 325354610, 341097575, 422960993, 431592850, 604229990, 682195150, 813386525, 845921986, 1510574975, 1626773050, 2114804965, 3021149950, 4229609930, 10574024825, 21148049650]

約数ペア:

[(1, 21148049650), (2, 10574024825), (5, 4229609930), (7, 3021149950), (10, 2114804965), (13, 1626773050), (14, 1510574975), (25, 845921986), (26, 813386525), (31, 682195150), (35, 604229990), (49, 431592850), (50, 422960993), (62, 341097575), (65, 325354610), (70, 302114995), (91, 232396150), (98, 215796425), (130, 162677305), (155, 136439030), (175, 120845998), (182, 116198075), (217, 97456450), (245, 86318570), (310, 68219515), (325, 65070922), (350, 60422999), (403, 52476550), (434, 48728225), (455, 46479230), (490, 43159285), (637, 33199450), (650, 32535461), (775, 27287806), (806, 26238275), (910, 23239615), (1085, 19491290), (1225, 17263714), (1274, 16599725), (1519, 13922350), (1550, 13643903), (2015, 10495310), (2170, 9745645), (2275, 9295846), (2450, 8631857), (2821, 7496650), (3038, 6961175), (3185, 6639890), (4030, 5247655), (4550, 4647923), (5425, 3898258), (5642, 3748325), (6370, 3319945), (7595, 2784470), (10075, 2099062), (10850, 1949129), (14105, 1499330), (15190, 1392235), (15925, 1327978), (19747, 1070950), (20150, 1049531), (21419, 987350), (28210, 749665), (31850, 663989), (37975, 556894), (39494, 535475), (42838, 493675), (70525, 299866), (75950, 278447), (98735, 214190), (107095, 197470), (141050, 149933)]