21997516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1201}}^1$

素因数の和:1465

約数の個数: 24

約数和(自身を含む): 40723760

約数和(自身を除く): 18726244

約数列:

[1, 2, 4, 19, 38, 76, 241, 482, 964, 1201, 2402, 4579, 4804, 9158, 18316, 22819, 45638, 91276, 289441, 578882, 1157764, 5499379, 10998758, 21997516]

約数ペア:

[(1, 21997516), (2, 10998758), (4, 5499379), (19, 1157764), (38, 578882), (76, 289441), (241, 91276), (482, 45638), (964, 22819), (1201, 18316), (2402, 9158), (4579, 4804)]