21358324

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 43838928

約数和(自身を除く): 22480604

約数列:

[1, 2, 4, 13, 17, 26, 34, 37, 52, 68, 74, 148, 221, 442, 481, 629, 653, 884, 962, 1258, 1306, 1924, 2516, 2612, 8177, 8489, 11101, 16354, 16978, 22202, 24161, 32708, 33956, 44404, 48322, 96644, 144313, 288626, 314093, 410737, 577252, 628186, 821474, 1256372, 1642948, 5339581, 10679162, 21358324]

約数ペア:

[(1, 21358324), (2, 10679162), (4, 5339581), (13, 1642948), (17, 1256372), (26, 821474), (34, 628186), (37, 577252), (52, 410737), (68, 314093), (74, 288626), (148, 144313), (221, 96644), (442, 48322), (481, 44404), (629, 33956), (653, 32708), (884, 24161), (962, 22202), (1258, 16978), (1306, 16354), (1924, 11101), (2516, 8489), (2612, 8177)]