18939972

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{409}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 47113920

約数和(自身を除く): 28173948

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 227, 409, 454, 681, 818, 908, 1227, 1362, 1636, 2454, 2724, 3859, 4908, 6953, 7718, 11577, 13906, 15436, 20859, 23154, 27812, 41718, 46308, 83436, 92843, 185686, 278529, 371372, 557058, 1114116, 1578331, 3156662, 4734993, 6313324, 9469986, 18939972]

約数ペア:

[(1, 18939972), (2, 9469986), (3, 6313324), (4, 4734993), (6, 3156662), (12, 1578331), (17, 1114116), (34, 557058), (51, 371372), (68, 278529), (102, 185686), (204, 92843), (227, 83436), (409, 46308), (454, 41718), (681, 27812), (818, 23154), (908, 20859), (1227, 15436), (1362, 13906), (1636, 11577), (2454, 7718), (2724, 6953), (3859, 4908)]