18746091

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 34105344

約数和(自身を除く): 15359253

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 423, 487, 611, 819, 987, 1461, 1833, 2961, 3409, 4277, 4383, 5499, 6331, 10227, 12831, 18993, 22889, 30681, 38493, 44317, 56979, 68667, 132951, 160223, 206001, 297557, 398853, 480669, 892671, 1442007, 2082899, 2678013, 6248697, 18746091]

約数ペア:

[(1, 18746091), (3, 6248697), (7, 2678013), (9, 2082899), (13, 1442007), (21, 892671), (39, 480669), (47, 398853), (63, 297557), (91, 206001), (117, 160223), (141, 132951), (273, 68667), (329, 56979), (423, 44317), (487, 38493), (611, 30681), (819, 22889), (987, 18993), (1461, 12831), (1833, 10227), (2961, 6331), (3409, 5499), (4277, 4383)]