31998603

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 57344000

約数和(自身を除く): 25345397

約数列:

[1, 3, 7, 13, 19, 21, 31, 39, 57, 91, 93, 133, 199, 217, 247, 273, 399, 403, 589, 597, 651, 741, 1209, 1393, 1729, 1767, 2587, 2821, 3781, 4123, 4179, 5187, 6169, 7657, 7761, 8463, 11343, 12369, 18109, 18507, 22971, 26467, 43183, 49153, 53599, 54327, 79401, 80197, 117211, 129549, 147459, 160797, 240591, 344071, 351633, 561379, 820477, 1032213, 1523743, 1684137, 2461431, 4571229, 10666201, 31998603]

約数ペア:

[(1, 31998603), (3, 10666201), (7, 4571229), (13, 2461431), (19, 1684137), (21, 1523743), (31, 1032213), (39, 820477), (57, 561379), (91, 351633), (93, 344071), (133, 240591), (199, 160797), (217, 147459), (247, 129549), (273, 117211), (399, 80197), (403, 79401), (589, 54327), (597, 53599), (651, 49153), (741, 43183), (1209, 26467), (1393, 22971), (1729, 18507), (1767, 18109), (2587, 12369), (2821, 11343), (3781, 8463), (4123, 7761), (4179, 7657), (5187, 6169)]