21000904

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{70949}}^1$

素因数の和:70992

約数の個数: 16

約数和(自身を含む): 40441500

約数和(自身を除く): 19440596

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 70949, 141898, 283796, 567592, 2625113, 5250226, 10500452, 21000904]

約数ペア:

[(1, 21000904), (2, 10500452), (4, 5250226), (8, 2625113), (37, 567592), (74, 283796), (148, 141898), (296, 70949)]