21912238

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:336

約数の個数: 24

約数和(自身を含む): 34839000

約数和(自身を除く): 12926762

約数列:

[1, 2, 23, 46, 139, 149, 278, 298, 529, 1058, 3197, 3427, 6394, 6854, 20711, 41422, 73531, 78821, 147062, 157642, 476353, 952706, 10956119, 21912238]

約数ペア:

[(1, 21912238), (2, 10956119), (23, 952706), (46, 476353), (139, 157642), (149, 147062), (278, 78821), (298, 73531), (529, 41422), (1058, 20711), (3197, 6854), (3427, 6394)]