19815874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 33974640

約数和(自身を除く): 14158766

約数列:

[1, 2, 13, 26, 29, 41, 58, 82, 377, 533, 641, 754, 1066, 1189, 1282, 2378, 8333, 15457, 16666, 18589, 26281, 30914, 37178, 52562, 241657, 341653, 483314, 683306, 762149, 1524298, 9907937, 19815874]

約数ペア:

[(1, 19815874), (2, 9907937), (13, 1524298), (26, 762149), (29, 683306), (41, 483314), (58, 341653), (82, 241657), (377, 52562), (533, 37178), (641, 30914), (754, 26281), (1066, 18589), (1189, 16666), (1282, 15457), (2378, 8333)]