28215733

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 39211776

約数和(自身を除く): 10996043

約数列:

[1, 7, 13, 17, 23, 61, 91, 119, 161, 169, 221, 299, 391, 427, 793, 1037, 1183, 1403, 1547, 2093, 2737, 2873, 3887, 5083, 5551, 7259, 9821, 10309, 13481, 18239, 20111, 23851, 27209, 35581, 66079, 72163, 94367, 127673, 166957, 175253, 237107, 310063, 462553, 1226771, 1659749, 2170441, 4030819, 28215733]

約数ペア:

[(1, 28215733), (7, 4030819), (13, 2170441), (17, 1659749), (23, 1226771), (61, 462553), (91, 310063), (119, 237107), (161, 175253), (169, 166957), (221, 127673), (299, 94367), (391, 72163), (427, 66079), (793, 35581), (1037, 27209), (1183, 23851), (1403, 20111), (1547, 18239), (2093, 13481), (2737, 10309), (2873, 9821), (3887, 7259), (5083, 5551)]