31235589

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 58900608

約数和(自身を除く): 27665019

約数列:

[1, 3, 7, 9, 11, 21, 33, 47, 49, 63, 77, 99, 137, 141, 147, 231, 329, 411, 423, 441, 517, 539, 693, 959, 987, 1233, 1507, 1551, 1617, 2303, 2877, 2961, 3619, 4521, 4653, 4851, 6439, 6713, 6909, 8631, 10549, 10857, 13563, 19317, 20139, 20727, 25333, 31647, 32571, 45073, 57951, 60417, 70829, 73843, 75999, 94941, 135219, 212487, 221529, 227997, 315511, 405657, 495803, 637461, 664587, 946533, 1487409, 2839599, 3470621, 4462227, 10411863, 31235589]

約数ペア:

[(1, 31235589), (3, 10411863), (7, 4462227), (9, 3470621), (11, 2839599), (21, 1487409), (33, 946533), (47, 664587), (49, 637461), (63, 495803), (77, 405657), (99, 315511), (137, 227997), (141, 221529), (147, 212487), (231, 135219), (329, 94941), (411, 75999), (423, 73843), (441, 70829), (517, 60417), (539, 57951), (693, 45073), (959, 32571), (987, 31647), (1233, 25333), (1507, 20727), (1551, 20139), (1617, 19317), (2303, 13563), (2877, 10857), (2961, 10549), (3619, 8631), (4521, 6909), (4653, 6713), (4851, 6439)]