21820414

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{1171}}^1$

素因数の和:1213

約数の個数: 32

約数和(自身を含む): 41179392

約数和(自身を除く): 19358978

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1171, 1331, 1694, 2342, 2662, 8197, 9317, 12881, 16394, 18634, 25762, 90167, 141691, 180334, 283382, 991837, 1558601, 1983674, 3117202, 10910207, 21820414]

約数ペア:

[(1, 21820414), (2, 10910207), (7, 3117202), (11, 1983674), (14, 1558601), (22, 991837), (77, 283382), (121, 180334), (154, 141691), (242, 90167), (847, 25762), (1171, 18634), (1331, 16394), (1694, 12881), (2342, 9317), (2662, 8197)]