20691550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2213}}^1$

素因数の和:2253

約数の個数: 48

約数和(自身を含む): 44474832

約数和(自身を除く): 23783282

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 170, 187, 275, 374, 425, 550, 850, 935, 1870, 2213, 4426, 4675, 9350, 11065, 22130, 24343, 37621, 48686, 55325, 75242, 110650, 121715, 188105, 243430, 376210, 413831, 608575, 827662, 940525, 1217150, 1881050, 2069155, 4138310, 10345775, 20691550]

約数ペア:

[(1, 20691550), (2, 10345775), (5, 4138310), (10, 2069155), (11, 1881050), (17, 1217150), (22, 940525), (25, 827662), (34, 608575), (50, 413831), (55, 376210), (85, 243430), (110, 188105), (170, 121715), (187, 110650), (275, 75242), (374, 55325), (425, 48686), (550, 37621), (850, 24343), (935, 22130), (1870, 11065), (2213, 9350), (4426, 4675)]