18350631

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 30596384

約数和(自身を除く): 12245753

約数列:

[1, 3, 9, 13, 27, 37, 39, 81, 111, 117, 157, 243, 333, 351, 471, 481, 999, 1053, 1413, 1443, 2041, 2997, 3159, 4239, 4329, 5809, 6123, 8991, 12717, 12987, 17427, 18369, 38151, 38961, 52281, 55107, 75517, 116883, 156843, 165321, 226551, 470529, 495963, 679653, 1411587, 2038959, 6116877, 18350631]

約数ペア:

[(1, 18350631), (3, 6116877), (9, 2038959), (13, 1411587), (27, 679653), (37, 495963), (39, 470529), (81, 226551), (111, 165321), (117, 156843), (157, 116883), (243, 75517), (333, 55107), (351, 52281), (471, 38961), (481, 38151), (999, 18369), (1053, 17427), (1413, 12987), (1443, 12717), (2041, 8991), (2997, 6123), (3159, 5809), (4239, 4329)]