20121968

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17713}}^1$

素因数の和:17792

約数の個数: 20

約数和(自身を含む): 39537648

約数和(自身を除く): 19415680

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17713, 35426, 70852, 141704, 283408, 1257623, 2515246, 5030492, 10060984, 20121968]

約数ペア:

[(1, 20121968), (2, 10060984), (4, 5030492), (8, 2515246), (16, 1257623), (71, 283408), (142, 141704), (284, 70852), (568, 35426), (1136, 17713)]