990171

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:73

約数の個数: 48

約数和(自身を含む): 1873920

約数和(自身を除く): 883749

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 63, 91, 93, 117, 169, 189, 217, 273, 279, 351, 403, 507, 651, 819, 837, 1183, 1209, 1521, 1953, 2457, 2821, 3549, 3627, 4563, 5239, 5859, 8463, 10647, 10881, 15717, 25389, 31941, 36673, 47151, 76167, 110019, 141453, 330057, 990171]

約数ペア:

[(1, 990171), (3, 330057), (7, 141453), (9, 110019), (13, 76167), (21, 47151), (27, 36673), (31, 31941), (39, 25389), (63, 15717), (91, 10881), (93, 10647), (117, 8463), (169, 5859), (189, 5239), (217, 4563), (273, 3627), (279, 3549), (351, 2821), (403, 2457), (507, 1953), (651, 1521), (819, 1209), (837, 1183)]