21999016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5717}}^1$

素因数の和:5773

約数の個数: 32

約数和(自身を含む): 45629640

約数和(自身を除く): 23630624

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 5717, 11434, 22868, 45736, 74321, 148642, 211529, 297284, 423058, 594568, 846116, 1692232, 2749877, 5499754, 10999508, 21999016]

約数ペア:

[(1, 21999016), (2, 10999508), (4, 5499754), (8, 2749877), (13, 1692232), (26, 846116), (37, 594568), (52, 423058), (74, 297284), (104, 211529), (148, 148642), (296, 74321), (481, 45736), (962, 22868), (1924, 11434), (3848, 5717)]