21479204

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1427}}^1$

素因数の和:1555

約数の個数: 24

約数和(自身を含む): 38864448

約数和(自身を除く): 17385244

約数列:

[1, 2, 4, 53, 71, 106, 142, 212, 284, 1427, 2854, 3763, 5708, 7526, 15052, 75631, 101317, 151262, 202634, 302524, 405268, 5369801, 10739602, 21479204]

約数ペア:

[(1, 21479204), (2, 10739602), (4, 5369801), (53, 405268), (71, 302524), (106, 202634), (142, 151262), (212, 101317), (284, 75631), (1427, 15052), (2854, 7526), (3763, 5708)]