19819384

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1279}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 20500616

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 149, 298, 596, 1192, 1279, 1937, 2558, 3874, 5116, 7748, 10232, 15496, 16627, 33254, 66508, 133016, 190571, 381142, 762284, 1524568, 2477423, 4954846, 9909692, 19819384]

約数ペア:

[(1, 19819384), (2, 9909692), (4, 4954846), (8, 2477423), (13, 1524568), (26, 762284), (52, 381142), (104, 190571), (149, 133016), (298, 66508), (596, 33254), (1192, 16627), (1279, 15496), (1937, 10232), (2558, 7748), (3874, 5116)]