21393476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2273}}^1$

素因数の和:2471

約数の個数: 24

約数和(自身を含む): 40559064

約数和(自身を除く): 19165588

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2273, 2353, 4546, 4706, 9092, 9412, 29549, 59098, 118196, 411413, 822826, 1645652, 5348369, 10696738, 21393476]

約数ペア:

[(1, 21393476), (2, 10696738), (4, 5348369), (13, 1645652), (26, 822826), (52, 411413), (181, 118196), (362, 59098), (724, 29549), (2273, 9412), (2353, 9092), (4546, 4706)]