20936578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 35675136

約数和(自身を除く): 14738558

約数列:

[1, 2, 13, 23, 26, 46, 157, 223, 299, 314, 446, 598, 2041, 2899, 3611, 4082, 5129, 5798, 7222, 10258, 35011, 46943, 66677, 70022, 93886, 133354, 455143, 805253, 910286, 1610506, 10468289, 20936578]

約数ペア:

[(1, 20936578), (2, 10468289), (13, 1610506), (23, 910286), (26, 805253), (46, 455143), (157, 133354), (223, 93886), (299, 70022), (314, 66677), (446, 46943), (598, 35011), (2041, 10258), (2899, 7222), (3611, 5798), (4082, 5129)]