17709885

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 32617728

約数和(自身を除く): 14907843

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 71, 115, 207, 213, 241, 345, 355, 639, 723, 1035, 1065, 1205, 1633, 2169, 3195, 3615, 4899, 5543, 8165, 10845, 14697, 16629, 17111, 24495, 27715, 49887, 51333, 73485, 83145, 85555, 153999, 249435, 256665, 393553, 769995, 1180659, 1967765, 3541977, 5903295, 17709885]

約数ペア:

[(1, 17709885), (3, 5903295), (5, 3541977), (9, 1967765), (15, 1180659), (23, 769995), (45, 393553), (69, 256665), (71, 249435), (115, 153999), (207, 85555), (213, 83145), (241, 73485), (345, 51333), (355, 49887), (639, 27715), (723, 24495), (1035, 17111), (1065, 16629), (1205, 14697), (1633, 10845), (2169, 8165), (3195, 5543), (3615, 4899)]