20473335

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 37559808

約数和(自身を除く): 17086473

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 131, 151, 207, 345, 393, 453, 655, 755, 1035, 1179, 1359, 1965, 2265, 3013, 3473, 5895, 6795, 9039, 10419, 15065, 17365, 19781, 27117, 31257, 45195, 52095, 59343, 98905, 135585, 156285, 178029, 296715, 454963, 890145, 1364889, 2274815, 4094667, 6824445, 20473335]

約数ペア:

[(1, 20473335), (3, 6824445), (5, 4094667), (9, 2274815), (15, 1364889), (23, 890145), (45, 454963), (69, 296715), (115, 178029), (131, 156285), (151, 135585), (207, 98905), (345, 59343), (393, 52095), (453, 45195), (655, 31257), (755, 27117), (1035, 19781), (1179, 17365), (1359, 15065), (1965, 10419), (2265, 9039), (3013, 6795), (3473, 5895)]