21277796

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1879}}^1$

素因数の和:2051

約数の個数: 24

約数和(自身を含む): 39480000

約数和(自身を除く): 18202204

約数列:

[1, 2, 4, 19, 38, 76, 149, 298, 596, 1879, 2831, 3758, 5662, 7516, 11324, 35701, 71402, 142804, 279971, 559942, 1119884, 5319449, 10638898, 21277796]

約数ペア:

[(1, 21277796), (2, 10638898), (4, 5319449), (19, 1119884), (38, 559942), (76, 279971), (149, 142804), (298, 71402), (596, 35701), (1879, 11324), (2831, 7516), (3758, 5662)]