21122452

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21379}}^1$

素因数の和:21415

約数の個数: 24

約数和(自身を含む): 41904800

約数和(自身を除く): 20782348

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21379, 42758, 85516, 277927, 406201, 555854, 812402, 1111708, 1624804, 5280613, 10561226, 21122452]

約数ペア:

[(1, 21122452), (2, 10561226), (4, 5280613), (13, 1624804), (19, 1111708), (26, 812402), (38, 555854), (52, 406201), (76, 277927), (247, 85516), (494, 42758), (988, 21379)]