16861790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 35831808

約数和(自身を除く): 18970018

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 71, 85, 110, 127, 142, 170, 187, 254, 355, 374, 635, 710, 781, 935, 1207, 1270, 1397, 1562, 1870, 2159, 2414, 2794, 3905, 4318, 6035, 6985, 7810, 9017, 10795, 12070, 13277, 13970, 18034, 21590, 23749, 26554, 45085, 47498, 66385, 90170, 99187, 118745, 132770, 153289, 198374, 237490, 306578, 495935, 766445, 991870, 1532890, 1686179, 3372358, 8430895, 16861790]

約数ペア:

[(1, 16861790), (2, 8430895), (5, 3372358), (10, 1686179), (11, 1532890), (17, 991870), (22, 766445), (34, 495935), (55, 306578), (71, 237490), (85, 198374), (110, 153289), (127, 132770), (142, 118745), (170, 99187), (187, 90170), (254, 66385), (355, 47498), (374, 45085), (635, 26554), (710, 23749), (781, 21590), (935, 18034), (1207, 13970), (1270, 13277), (1397, 12070), (1562, 10795), (1870, 9017), (2159, 7810), (2414, 6985), (2794, 6035), (3905, 4318)]