21978978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{4801}}^1$

素因数の和:4922

約数の個数: 32

約数和(自身を含む): 50709120

約数和(自身を除く): 28730142

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 109, 218, 327, 654, 763, 1526, 2289, 4578, 4801, 9602, 14403, 28806, 33607, 67214, 100821, 201642, 523309, 1046618, 1569927, 3139854, 3663163, 7326326, 10989489, 21978978]

約数ペア:

[(1, 21978978), (2, 10989489), (3, 7326326), (6, 3663163), (7, 3139854), (14, 1569927), (21, 1046618), (42, 523309), (109, 201642), (218, 100821), (327, 67214), (654, 33607), (763, 28806), (1526, 14403), (2289, 9602), (4578, 4801)]