20704515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1193}}^1$

素因数の和:1303

約数の個数: 32

約数和(自身を含む): 36106560

約数和(自身を除く): 15402045

約数列:

[1, 3, 5, 13, 15, 39, 65, 89, 195, 267, 445, 1157, 1193, 1335, 3471, 3579, 5785, 5965, 15509, 17355, 17895, 46527, 77545, 106177, 232635, 318531, 530885, 1380301, 1592655, 4140903, 6901505, 20704515]

約数ペア:

[(1, 20704515), (3, 6901505), (5, 4140903), (13, 1592655), (15, 1380301), (39, 530885), (65, 318531), (89, 232635), (195, 106177), (267, 77545), (445, 46527), (1157, 17895), (1193, 17355), (1335, 15509), (3471, 5965), (3579, 5785)]