21740620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5813}}^1$

素因数の和:5850

約数の個数: 48

約数和(自身を含む): 52744608

約数和(自身を除く): 31003988

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5813, 11626, 23252, 29065, 58130, 63943, 98821, 116260, 127886, 197642, 255772, 319715, 395284, 494105, 639430, 988210, 1087031, 1278860, 1976420, 2174062, 4348124, 5435155, 10870310, 21740620]

約数ペア:

[(1, 21740620), (2, 10870310), (4, 5435155), (5, 4348124), (10, 2174062), (11, 1976420), (17, 1278860), (20, 1087031), (22, 988210), (34, 639430), (44, 494105), (55, 395284), (68, 319715), (85, 255772), (110, 197642), (170, 127886), (187, 116260), (220, 98821), (340, 63943), (374, 58130), (748, 29065), (935, 23252), (1870, 11626), (3740, 5813)]