19657508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{601}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 40353264

約数和(自身を除く): 20695756

約数列:

[1, 2, 4, 13, 17, 26, 34, 37, 52, 68, 74, 148, 221, 442, 481, 601, 629, 884, 962, 1202, 1258, 1924, 2404, 2516, 7813, 8177, 10217, 15626, 16354, 20434, 22237, 31252, 32708, 40868, 44474, 88948, 132821, 265642, 289081, 378029, 531284, 578162, 756058, 1156324, 1512116, 4914377, 9828754, 19657508]

約数ペア:

[(1, 19657508), (2, 9828754), (4, 4914377), (13, 1512116), (17, 1156324), (26, 756058), (34, 578162), (37, 531284), (52, 378029), (68, 289081), (74, 265642), (148, 132821), (221, 88948), (442, 44474), (481, 40868), (601, 32708), (629, 31252), (884, 22237), (962, 20434), (1202, 16354), (1258, 15626), (1924, 10217), (2404, 8177), (2516, 7813)]