20181788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{26981}}^1$

素因数の和:27013

約数の個数: 24

約数和(自身を含む): 40796784

約数和(自身を除く): 20614996

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 26981, 53962, 107924, 296791, 458677, 593582, 917354, 1187164, 1834708, 5045447, 10090894, 20181788]

約数ペア:

[(1, 20181788), (2, 10090894), (4, 5045447), (11, 1834708), (17, 1187164), (22, 917354), (34, 593582), (44, 458677), (68, 296791), (187, 107924), (374, 53962), (748, 26981)]