21306296

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12743}}^1$

素因数の和:12779

約数の個数: 32

約数和(自身を含む): 45878400

約数和(自身を除く): 24572104

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12743, 25486, 50972, 101944, 140173, 242117, 280346, 484234, 560692, 968468, 1121384, 1936936, 2663287, 5326574, 10653148, 21306296]

約数ペア:

[(1, 21306296), (2, 10653148), (4, 5326574), (8, 2663287), (11, 1936936), (19, 1121384), (22, 968468), (38, 560692), (44, 484234), (76, 280346), (88, 242117), (152, 140173), (209, 101944), (418, 50972), (836, 25486), (1672, 12743)]