20641831

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:478

約数の個数: 16

約数和(自身を含む): 24140800

約数和(自身を除く): 3498969

約数列:

[1, 7, 79, 163, 229, 553, 1141, 1603, 12877, 18091, 37327, 90139, 126637, 261289, 2948833, 20641831]

約数ペア:

[(1, 20641831), (7, 2948833), (79, 261289), (163, 126637), (229, 90139), (553, 37327), (1141, 18091), (1603, 12877)]