21143578

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{1097}}^1$

素因数の和:1541

約数の個数: 16

約数和(自身を含む): 33203520

約数和(自身を除く): 12059942

約数列:

[1, 2, 23, 46, 419, 838, 1097, 2194, 9637, 19274, 25231, 50462, 459643, 919286, 10571789, 21143578]

約数ペア:

[(1, 21143578), (2, 10571789), (23, 919286), (46, 459643), (419, 50462), (838, 25231), (1097, 19274), (2194, 9637)]