21107940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1733}}^1$

素因数の和:1781

約数の個数: 96

約数和(自身を含む): 69914880

約数和(自身を除く): 48806940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1733, 1740, 2030, 2436, 3045, 3466, 4060, 5199, 6090, 6932, 8665, 10398, 12131, 12180, 17330, 20796, 24262, 25995, 34660, 36393, 48524, 50257, 51990, 60655, 72786, 100514, 103980, 121310, 145572, 150771, 181965, 201028, 242620, 251285, 301542, 351799, 363930, 502570, 603084, 703598, 727860, 753855, 1005140, 1055397, 1407196, 1507710, 1758995, 2110794, 3015420, 3517990, 4221588, 5276985, 7035980, 10553970, 21107940]

約数ペア:

[(1, 21107940), (2, 10553970), (3, 7035980), (4, 5276985), (5, 4221588), (6, 3517990), (7, 3015420), (10, 2110794), (12, 1758995), (14, 1507710), (15, 1407196), (20, 1055397), (21, 1005140), (28, 753855), (29, 727860), (30, 703598), (35, 603084), (42, 502570), (58, 363930), (60, 351799), (70, 301542), (84, 251285), (87, 242620), (105, 201028), (116, 181965), (140, 150771), (145, 145572), (174, 121310), (203, 103980), (210, 100514), (290, 72786), (348, 60655), (406, 51990), (420, 50257), (435, 48524), (580, 36393), (609, 34660), (812, 25995), (870, 24262), (1015, 20796), (1218, 17330), (1733, 12180), (1740, 12131), (2030, 10398), (2436, 8665), (3045, 6932), (3466, 6090), (4060, 5199)]