21196868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68821}}^1$

素因数の和:68843

約数の個数: 24

約数和(自身を含む): 46248384

約数和(自身を除く): 25051516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68821, 137642, 275284, 481747, 757031, 963494, 1514062, 1926988, 3028124, 5299217, 10598434, 21196868]

約数ペア:

[(1, 21196868), (2, 10598434), (4, 5299217), (7, 3028124), (11, 1926988), (14, 1514062), (22, 963494), (28, 757031), (44, 481747), (77, 275284), (154, 137642), (308, 68821)]