251286633

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 401755536

約数和(自身を除く): 150468903

約数列:

[1, 3, 9, 13, 39, 61, 117, 137, 183, 257, 411, 549, 771, 793, 1233, 1781, 2313, 2379, 3341, 5343, 7137, 8357, 10023, 15677, 16029, 25071, 30069, 35209, 47031, 75213, 105627, 108641, 141093, 203801, 316881, 325923, 457717, 611403, 977769, 1373151, 1834209, 2147749, 4119453, 6443247, 19329741, 27920737, 83762211, 251286633]

約数ペア:

[(1, 251286633), (3, 83762211), (9, 27920737), (13, 19329741), (39, 6443247), (61, 4119453), (117, 2147749), (137, 1834209), (183, 1373151), (257, 977769), (411, 611403), (549, 457717), (771, 325923), (793, 316881), (1233, 203801), (1781, 141093), (2313, 108641), (2379, 105627), (3341, 75213), (5343, 47031), (7137, 35209), (8357, 30069), (10023, 25071), (15677, 16029)]