21371350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 144

約数和(自身を含む): 55215216

約数和(自身を除く): 33843866

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 25, 26, 35, 49, 50, 55, 61, 65, 70, 77, 91, 98, 110, 122, 130, 143, 154, 175, 182, 245, 275, 286, 305, 325, 350, 385, 427, 455, 490, 539, 550, 610, 637, 650, 671, 715, 770, 793, 854, 910, 1001, 1078, 1225, 1274, 1342, 1430, 1525, 1586, 1925, 2002, 2135, 2275, 2450, 2695, 2989, 3050, 3185, 3355, 3575, 3850, 3965, 4270, 4550, 4697, 5005, 5390, 5551, 5978, 6370, 6710, 7007, 7150, 7930, 8723, 9394, 10010, 10675, 11102, 13475, 14014, 14945, 15925, 16775, 17446, 19825, 21350, 23485, 25025, 26950, 27755, 29890, 31850, 32879, 33550, 35035, 38857, 39650, 43615, 46970, 50050, 55510, 61061, 65758, 70070, 74725, 77714, 87230, 117425, 122122, 138775, 149450, 164395, 175175, 194285, 218075, 234850, 277550, 305305, 328790, 350350, 388570, 427427, 436150, 610610, 821975, 854854, 971425, 1526525, 1643950, 1942850, 2137135, 3053050, 4274270, 10685675, 21371350]

約数ペア:

[(1, 21371350), (2, 10685675), (5, 4274270), (7, 3053050), (10, 2137135), (11, 1942850), (13, 1643950), (14, 1526525), (22, 971425), (25, 854854), (26, 821975), (35, 610610), (49, 436150), (50, 427427), (55, 388570), (61, 350350), (65, 328790), (70, 305305), (77, 277550), (91, 234850), (98, 218075), (110, 194285), (122, 175175), (130, 164395), (143, 149450), (154, 138775), (175, 122122), (182, 117425), (245, 87230), (275, 77714), (286, 74725), (305, 70070), (325, 65758), (350, 61061), (385, 55510), (427, 50050), (455, 46970), (490, 43615), (539, 39650), (550, 38857), (610, 35035), (637, 33550), (650, 32879), (671, 31850), (715, 29890), (770, 27755), (793, 26950), (854, 25025), (910, 23485), (1001, 21350), (1078, 19825), (1225, 17446), (1274, 16775), (1342, 15925), (1430, 14945), (1525, 14014), (1586, 13475), (1925, 11102), (2002, 10675), (2135, 10010), (2275, 9394), (2450, 8723), (2695, 7930), (2989, 7150), (3050, 7007), (3185, 6710), (3355, 6370), (3575, 5978), (3850, 5551), (3965, 5390), (4270, 5005), (4550, 4697)]