87378759

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 145297152

約数和(自身を除く): 57918393

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 197, 221, 223, 591, 663, 669, 1773, 1989, 2007, 2561, 2899, 3349, 3791, 7683, 8697, 10047, 11373, 23049, 26091, 30141, 34119, 43537, 43931, 49283, 130611, 131793, 147849, 391833, 395379, 443547, 571103, 746827, 1713309, 2240481, 5139927, 6721443, 9708751, 29126253, 87378759]

約数ペア:

[(1, 87378759), (3, 29126253), (9, 9708751), (13, 6721443), (17, 5139927), (39, 2240481), (51, 1713309), (117, 746827), (153, 571103), (197, 443547), (221, 395379), (223, 391833), (591, 147849), (663, 131793), (669, 130611), (1773, 49283), (1989, 43931), (2007, 43537), (2561, 34119), (2899, 30141), (3349, 26091), (3791, 23049), (7683, 11373), (8697, 10047)]