28071407

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:483

約数の個数: 24

約数和(自身を含む): 35399520

約数和(自身を除く): 7328113

約数列:

[1, 7, 13, 61, 91, 169, 389, 427, 793, 1183, 2723, 5057, 5551, 10309, 23729, 35399, 65741, 72163, 166103, 308477, 460187, 2159339, 4010201, 28071407]

約数ペア:

[(1, 28071407), (7, 4010201), (13, 2159339), (61, 460187), (91, 308477), (169, 166103), (389, 72163), (427, 65741), (793, 35399), (1183, 23729), (2723, 10309), (5057, 5551)]