20572419

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 33030144

約数和(自身を除く): 12457725

約数列:

[1, 3, 7, 21, 23, 69, 161, 191, 223, 483, 573, 669, 1337, 1561, 4011, 4393, 4683, 5129, 13179, 15387, 30751, 35903, 42593, 92253, 107709, 127779, 298151, 894453, 979639, 2938917, 6857473, 20572419]

約数ペア:

[(1, 20572419), (3, 6857473), (7, 2938917), (21, 979639), (23, 894453), (69, 298151), (161, 127779), (191, 107709), (223, 92253), (483, 42593), (573, 35903), (669, 30751), (1337, 15387), (1561, 13179), (4011, 5129), (4393, 4683)]