21041968

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{3643}}^1$

素因数の和:3689

約数の個数: 30

約数和(自身を含む): 43039284

約数和(自身を除く): 21997316

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 361, 722, 1444, 2888, 3643, 5776, 7286, 14572, 29144, 58288, 69217, 138434, 276868, 553736, 1107472, 1315123, 2630246, 5260492, 10520984, 21041968]

約数ペア:

[(1, 21041968), (2, 10520984), (4, 5260492), (8, 2630246), (16, 1315123), (19, 1107472), (38, 553736), (76, 276868), (152, 138434), (304, 69217), (361, 58288), (722, 29144), (1444, 14572), (2888, 7286), (3643, 5776)]