21277018

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:382

約数の個数: 32

約数和(自身を含む): 37509120

約数和(自身を除く): 16232102

約数列:

[1, 2, 7, 14, 73, 109, 146, 191, 218, 382, 511, 763, 1022, 1337, 1526, 2674, 7957, 13943, 15914, 20819, 27886, 41638, 55699, 97601, 111398, 145733, 195202, 291466, 1519787, 3039574, 10638509, 21277018]

約数ペア:

[(1, 21277018), (2, 10638509), (7, 3039574), (14, 1519787), (73, 291466), (109, 195202), (146, 145733), (191, 111398), (218, 97601), (382, 55699), (511, 41638), (763, 27886), (1022, 20819), (1337, 15914), (1526, 13943), (2674, 7957)]