21884655

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 38737440

約数和(自身を除く): 16852785

約数列:

[1, 3, 5, 13, 15, 39, 65, 89, 97, 169, 195, 267, 291, 445, 485, 507, 845, 1157, 1261, 1335, 1455, 2535, 3471, 3783, 5785, 6305, 8633, 15041, 16393, 17355, 18915, 25899, 43165, 45123, 49179, 75205, 81965, 112229, 129495, 225615, 245895, 336687, 561145, 1458977, 1683435, 4376931, 7294885, 21884655]

約数ペア:

[(1, 21884655), (3, 7294885), (5, 4376931), (13, 1683435), (15, 1458977), (39, 561145), (65, 336687), (89, 245895), (97, 225615), (169, 129495), (195, 112229), (267, 81965), (291, 75205), (445, 49179), (485, 45123), (507, 43165), (845, 25899), (1157, 18915), (1261, 17355), (1335, 16393), (1455, 15041), (2535, 8633), (3471, 6305), (3783, 5785)]