30639141

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 56

約数和(自身を含む): 51231096

約数和(自身を除く): 20591955

約数列:

[1, 3, 9, 13, 27, 39, 53, 61, 81, 117, 159, 183, 243, 351, 477, 549, 689, 729, 793, 1053, 1431, 1647, 2067, 2379, 3159, 3233, 4293, 4941, 6201, 7137, 9477, 9699, 12879, 14823, 18603, 21411, 29097, 38637, 42029, 44469, 55809, 64233, 87291, 126087, 167427, 192699, 261873, 378261, 502281, 578097, 785619, 1134783, 2356857, 3404349, 10213047, 30639141]

約数ペア:

[(1, 30639141), (3, 10213047), (9, 3404349), (13, 2356857), (27, 1134783), (39, 785619), (53, 578097), (61, 502281), (81, 378261), (117, 261873), (159, 192699), (183, 167427), (243, 126087), (351, 87291), (477, 64233), (549, 55809), (689, 44469), (729, 42029), (793, 38637), (1053, 29097), (1431, 21411), (1647, 18603), (2067, 14823), (2379, 12879), (3159, 9699), (3233, 9477), (4293, 7137), (4941, 6201)]