20983508

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3391}}^1$

素因数の和:3432

約数の個数: 48

約数和(自身を含む): 47867904

約数和(自身を除く): 26884396

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 3391, 6188, 6782, 13564, 23737, 44083, 47474, 57647, 88166, 94948, 115294, 176332, 230588, 308581, 403529, 617162, 749411, 807058, 1234324, 1498822, 1614116, 2997644, 5245877, 10491754, 20983508]

約数ペア:

[(1, 20983508), (2, 10491754), (4, 5245877), (7, 2997644), (13, 1614116), (14, 1498822), (17, 1234324), (26, 807058), (28, 749411), (34, 617162), (52, 403529), (68, 308581), (91, 230588), (119, 176332), (182, 115294), (221, 94948), (238, 88166), (364, 57647), (442, 47474), (476, 44083), (884, 23737), (1547, 13564), (3094, 6782), (3391, 6188)]