21915404

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{8069}}^1$

素因数の和:8177

約数の個数: 24

約数和(自身を含む): 44288160

約数和(自身を除く): 22372756

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 8069, 16138, 32276, 56483, 112966, 225932, 782693, 1565386, 3130772, 5478851, 10957702, 21915404]

約数ペア:

[(1, 21915404), (2, 10957702), (4, 5478851), (7, 3130772), (14, 1565386), (28, 782693), (97, 225932), (194, 112966), (388, 56483), (679, 32276), (1358, 16138), (2716, 8069)]