21077637

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 35837952

約数和(自身を除く): 14760315

約数列:

[1, 3, 7, 17, 21, 23, 51, 69, 119, 151, 161, 289, 357, 391, 453, 483, 867, 1057, 1173, 2023, 2567, 2737, 3171, 3473, 6069, 6647, 7701, 8211, 10419, 17969, 19941, 24311, 43639, 46529, 53907, 59041, 72933, 130917, 139587, 177123, 305473, 413287, 916419, 1003697, 1239861, 3011091, 7025879, 21077637]

約数ペア:

[(1, 21077637), (3, 7025879), (7, 3011091), (17, 1239861), (21, 1003697), (23, 916419), (51, 413287), (69, 305473), (119, 177123), (151, 139587), (161, 130917), (289, 72933), (357, 59041), (391, 53907), (453, 46529), (483, 43639), (867, 24311), (1057, 19941), (1173, 17969), (2023, 10419), (2567, 8211), (2737, 7701), (3171, 6647), (3473, 6069)]