20973687

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6703}}^1$

素因数の和:6862

約数の個数: 16

約数和(自身を含む): 32179200

約数和(自身を除く): 11205513

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6703, 20109, 46921, 140763, 998747, 2996241, 6991229, 20973687]

約数ペア:

[(1, 20973687), (3, 6991229), (7, 2996241), (21, 998747), (149, 140763), (447, 46921), (1043, 20109), (3129, 6703)]