21657324

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138829}}^1$

素因数の和:138849

約数の個数: 24

約数和(自身を含む): 54421360

約数和(自身を除く): 32764036

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138829, 277658, 416487, 555316, 832974, 1665948, 1804777, 3609554, 5414331, 7219108, 10828662, 21657324]

約数ペア:

[(1, 21657324), (2, 10828662), (3, 7219108), (4, 5414331), (6, 3609554), (12, 1804777), (13, 1665948), (26, 832974), (39, 555316), (52, 416487), (78, 277658), (156, 138829)]