81119493

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 153017280

約数和(自身を除く): 71897787

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 169, 171, 247, 273, 399, 401, 507, 741, 819, 1183, 1197, 1203, 1521, 1729, 2223, 2807, 3211, 3549, 3609, 5187, 5213, 7619, 8421, 9633, 10647, 15561, 15639, 22477, 22857, 25263, 28899, 36491, 46917, 53333, 67431, 67769, 68571, 99047, 109473, 159999, 202293, 203307, 297141, 328419, 474383, 479997, 609921, 693329, 891423, 1287611, 1423149, 2079987, 3862833, 4269447, 6239961, 9013277, 11588499, 27039831, 81119493]

約数ペア:

[(1, 81119493), (3, 27039831), (7, 11588499), (9, 9013277), (13, 6239961), (19, 4269447), (21, 3862833), (39, 2079987), (57, 1423149), (63, 1287611), (91, 891423), (117, 693329), (133, 609921), (169, 479997), (171, 474383), (247, 328419), (273, 297141), (399, 203307), (401, 202293), (507, 159999), (741, 109473), (819, 99047), (1183, 68571), (1197, 67769), (1203, 67431), (1521, 53333), (1729, 46917), (2223, 36491), (2807, 28899), (3211, 25263), (3549, 22857), (3609, 22477), (5187, 15639), (5213, 15561), (7619, 10647), (8421, 9633)]