18968872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10729}}^1$

素因数の和:10765

約数の個数: 32

約数和(自身を含む): 40559400

約数和(自身を除く): 21590528

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 10729, 21458, 42916, 85832, 139477, 182393, 278954, 364786, 557908, 729572, 1115816, 1459144, 2371109, 4742218, 9484436, 18968872]

約数ペア:

[(1, 18968872), (2, 9484436), (4, 4742218), (8, 2371109), (13, 1459144), (17, 1115816), (26, 729572), (34, 557908), (52, 364786), (68, 278954), (104, 182393), (136, 139477), (221, 85832), (442, 42916), (884, 21458), (1768, 10729)]