21847140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2477}}^1$

素因数の和:2506

約数の個数: 108

約数和(自身を含む): 77120316

約数和(自身を除く): 55273176

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2477, 2940, 4410, 4954, 7431, 8820, 9908, 12385, 14862, 17339, 22293, 24770, 29724, 34678, 37155, 44586, 49540, 52017, 69356, 74310, 86695, 89172, 104034, 111465, 121373, 148620, 156051, 173390, 208068, 222930, 242746, 260085, 312102, 346780, 364119, 445860, 485492, 520170, 606865, 624204, 728238, 780255, 1040340, 1092357, 1213730, 1456476, 1560510, 1820595, 2184714, 2427460, 3121020, 3641190, 4369428, 5461785, 7282380, 10923570, 21847140]

約数ペア:

[(1, 21847140), (2, 10923570), (3, 7282380), (4, 5461785), (5, 4369428), (6, 3641190), (7, 3121020), (9, 2427460), (10, 2184714), (12, 1820595), (14, 1560510), (15, 1456476), (18, 1213730), (20, 1092357), (21, 1040340), (28, 780255), (30, 728238), (35, 624204), (36, 606865), (42, 520170), (45, 485492), (49, 445860), (60, 364119), (63, 346780), (70, 312102), (84, 260085), (90, 242746), (98, 222930), (105, 208068), (126, 173390), (140, 156051), (147, 148620), (180, 121373), (196, 111465), (210, 104034), (245, 89172), (252, 86695), (294, 74310), (315, 69356), (420, 52017), (441, 49540), (490, 44586), (588, 37155), (630, 34678), (735, 29724), (882, 24770), (980, 22293), (1260, 17339), (1470, 14862), (1764, 12385), (2205, 9908), (2477, 8820), (2940, 7431), (4410, 4954)]