21220318

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{547}}^1$

素因数の和:736

約数の個数: 32

約数和(自身を含む): 38824704

約数和(自身を除く): 17604386

約数列:

[1, 2, 7, 14, 17, 34, 119, 163, 238, 326, 547, 1094, 1141, 2282, 2771, 3829, 5542, 7658, 9299, 18598, 19397, 38794, 65093, 89161, 130186, 178322, 624127, 1248254, 1515737, 3031474, 10610159, 21220318]

約数ペア:

[(1, 21220318), (2, 10610159), (7, 3031474), (14, 1515737), (17, 1248254), (34, 624127), (119, 178322), (163, 130186), (238, 89161), (326, 65093), (547, 38794), (1094, 19397), (1141, 18598), (2282, 9299), (2771, 7658), (3829, 5542)]