17997928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2837}}^1$

素因数の和:2917

約数の個数: 32

約数和(自身を含む): 36950760

約数和(自身を除く): 18952832

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 2837, 3172, 5674, 6344, 11348, 22696, 36881, 73762, 147524, 173057, 295048, 346114, 692228, 1384456, 2249741, 4499482, 8998964, 17997928]

約数ペア:

[(1, 17997928), (2, 8998964), (4, 4499482), (8, 2249741), (13, 1384456), (26, 692228), (52, 346114), (61, 295048), (104, 173057), (122, 147524), (244, 73762), (488, 36881), (793, 22696), (1586, 11348), (2837, 6344), (3172, 5674)]