20121668

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{6977}}^1$

素因数の和:7091

約数の個数: 24

約数和(自身を含む): 40639872

約数和(自身を除く): 20518204

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 6977, 13954, 27908, 48839, 97678, 195356, 718631, 1437262, 2874524, 5030417, 10060834, 20121668]

約数ペア:

[(1, 20121668), (2, 10060834), (4, 5030417), (7, 2874524), (14, 1437262), (28, 718631), (103, 195356), (206, 97678), (412, 48839), (721, 27908), (1442, 13954), (2884, 6977)]