19818436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{4373}}^1$

素因数の和:4491

約数の個数: 24

約数和(自身を含む): 38211264

約数和(自身を除く): 18392828

約数列:

[1, 2, 4, 11, 22, 44, 103, 206, 412, 1133, 2266, 4373, 4532, 8746, 17492, 48103, 96206, 192412, 450419, 900838, 1801676, 4954609, 9909218, 19818436]

約数ペア:

[(1, 19818436), (2, 9909218), (4, 4954609), (11, 1801676), (22, 900838), (44, 450419), (103, 192412), (206, 96206), (412, 48103), (1133, 17492), (2266, 8746), (4373, 4532)]