21378306

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{677}}^1$

素因数の和:978

約数の個数: 32

約数和(自身を含む): 45236160

約数和(自身を除く): 23857854

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 277, 554, 677, 831, 1354, 1662, 2031, 4062, 5263, 10526, 12863, 15789, 25726, 31578, 38589, 77178, 187529, 375058, 562587, 1125174, 3563051, 7126102, 10689153, 21378306]

約数ペア:

[(1, 21378306), (2, 10689153), (3, 7126102), (6, 3563051), (19, 1125174), (38, 562587), (57, 375058), (114, 187529), (277, 77178), (554, 38589), (677, 31578), (831, 25726), (1354, 15789), (1662, 12863), (2031, 10526), (4062, 5263)]