16887970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{821}}^1$

素因数の和:867

約数の個数: 48

約数和(自身を含む): 35421624

約数和(自身を除く): 18533654

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 121, 170, 187, 242, 374, 605, 821, 935, 1210, 1642, 1870, 2057, 4105, 4114, 8210, 9031, 10285, 13957, 18062, 20570, 27914, 45155, 69785, 90310, 99341, 139570, 153527, 198682, 307054, 496705, 767635, 993410, 1535270, 1688797, 3377594, 8443985, 16887970]

約数ペア:

[(1, 16887970), (2, 8443985), (5, 3377594), (10, 1688797), (11, 1535270), (17, 993410), (22, 767635), (34, 496705), (55, 307054), (85, 198682), (110, 153527), (121, 139570), (170, 99341), (187, 90310), (242, 69785), (374, 45155), (605, 27914), (821, 20570), (935, 18062), (1210, 13957), (1642, 10285), (1870, 9031), (2057, 8210), (4105, 4114)]