21791276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{677}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 41195280

約数和(自身を除く): 19404004

約数列:

[1, 2, 4, 13, 26, 52, 619, 677, 1238, 1354, 2476, 2708, 8047, 8801, 16094, 17602, 32188, 35204, 419063, 838126, 1676252, 5447819, 10895638, 21791276]

約数ペア:

[(1, 21791276), (2, 10895638), (4, 5447819), (13, 1676252), (26, 838126), (52, 419063), (619, 35204), (677, 32188), (1238, 17602), (1354, 16094), (2476, 8801), (2708, 8047)]