16655457

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{19}}^2$

素因数の和:87

約数の個数: 48

約数和(自身を含む): 29016960

約数和(自身を除く): 12361503

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 169, 247, 273, 361, 399, 507, 741, 1083, 1183, 1729, 2197, 2527, 3211, 3549, 4693, 5187, 6591, 7581, 9633, 14079, 15379, 22477, 32851, 41743, 46137, 61009, 67431, 98553, 125229, 183027, 292201, 427063, 793117, 876603, 1281189, 2379351, 5551819, 16655457]

約数ペア:

[(1, 16655457), (3, 5551819), (7, 2379351), (13, 1281189), (19, 876603), (21, 793117), (39, 427063), (57, 292201), (91, 183027), (133, 125229), (169, 98553), (247, 67431), (273, 61009), (361, 46137), (399, 41743), (507, 32851), (741, 22477), (1083, 15379), (1183, 14079), (1729, 9633), (2197, 7581), (2527, 6591), (3211, 5187), (3549, 4693)]