20931482

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 37195200

約数和(自身を除く): 16263718

約数列:

[1, 2, 11, 13, 22, 26, 143, 163, 286, 326, 449, 898, 1793, 2119, 3586, 4238, 4939, 5837, 9878, 11674, 23309, 46618, 64207, 73187, 128414, 146374, 805057, 951431, 1610114, 1902862, 10465741, 20931482]

約数ペア:

[(1, 20931482), (2, 10465741), (11, 1902862), (13, 1610114), (22, 951431), (26, 805057), (143, 146374), (163, 128414), (286, 73187), (326, 64207), (449, 46618), (898, 23309), (1793, 11674), (2119, 9878), (3586, 5837), (4238, 4939)]