208399359

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 322882560

約数和(自身を除く): 114483201

約数列:

[1, 3, 7, 21, 97, 263, 291, 389, 679, 789, 1167, 1841, 2037, 2723, 5523, 8169, 25511, 37733, 76533, 102307, 113199, 178577, 264131, 306921, 535731, 716149, 792393, 2148447, 9923779, 29771337, 69466453, 208399359]

約数ペア:

[(1, 208399359), (3, 69466453), (7, 29771337), (21, 9923779), (97, 2148447), (263, 792393), (291, 716149), (389, 535731), (679, 306921), (789, 264131), (1167, 178577), (1841, 113199), (2037, 102307), (2723, 76533), (5523, 37733), (8169, 25511)]