21061352

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3821}}^1$

素因数の和:3893

約数の個数: 32

約数和(自身を含む): 43341480

約数和(自身を除く): 22280128

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3821, 5512, 7642, 15284, 30568, 49673, 99346, 198692, 202513, 397384, 405026, 810052, 1620104, 2632669, 5265338, 10530676, 21061352]

約数ペア:

[(1, 21061352), (2, 10530676), (4, 5265338), (8, 2632669), (13, 1620104), (26, 810052), (52, 405026), (53, 397384), (104, 202513), (106, 198692), (212, 99346), (424, 49673), (689, 30568), (1378, 15284), (2756, 7642), (3821, 5512)]