21745260

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:485

約数の個数: 120

約数和(自身を含む): 70578816

約数和(自身を除く): 48833556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 433, 465, 540, 558, 620, 810, 837, 866, 930, 1116, 1299, 1395, 1620, 1674, 1732, 1860, 2165, 2511, 2598, 2790, 3348, 3897, 4185, 4330, 5022, 5196, 5580, 6495, 7794, 8370, 8660, 10044, 11691, 12555, 12990, 13423, 15588, 16740, 19485, 23382, 25110, 25980, 26846, 35073, 38970, 40269, 46764, 50220, 53692, 58455, 67115, 70146, 77940, 80538, 116910, 120807, 134230, 140292, 161076, 175365, 201345, 233820, 241614, 268460, 350730, 362421, 402690, 483228, 604035, 701460, 724842, 805380, 1087263, 1208070, 1449684, 1812105, 2174526, 2416140, 3624210, 4349052, 5436315, 7248420, 10872630, 21745260]

約数ペア:

[(1, 21745260), (2, 10872630), (3, 7248420), (4, 5436315), (5, 4349052), (6, 3624210), (9, 2416140), (10, 2174526), (12, 1812105), (15, 1449684), (18, 1208070), (20, 1087263), (27, 805380), (30, 724842), (31, 701460), (36, 604035), (45, 483228), (54, 402690), (60, 362421), (62, 350730), (81, 268460), (90, 241614), (93, 233820), (108, 201345), (124, 175365), (135, 161076), (155, 140292), (162, 134230), (180, 120807), (186, 116910), (270, 80538), (279, 77940), (310, 70146), (324, 67115), (372, 58455), (405, 53692), (433, 50220), (465, 46764), (540, 40269), (558, 38970), (620, 35073), (810, 26846), (837, 25980), (866, 25110), (930, 23382), (1116, 19485), (1299, 16740), (1395, 15588), (1620, 13423), (1674, 12990), (1732, 12555), (1860, 11691), (2165, 10044), (2511, 8660), (2598, 8370), (2790, 7794), (3348, 6495), (3897, 5580), (4185, 5196), (4330, 5022)]