20775195

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{653}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 41625792

約数和(自身を除く): 20850597

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 101, 105, 303, 315, 505, 653, 707, 909, 1515, 1959, 2121, 3265, 3535, 4545, 4571, 5877, 6363, 9795, 10605, 13713, 22855, 29385, 31815, 41139, 65953, 68565, 197859, 205695, 329765, 461671, 593577, 989295, 1385013, 2308355, 2967885, 4155039, 6925065, 20775195]

約数ペア:

[(1, 20775195), (3, 6925065), (5, 4155039), (7, 2967885), (9, 2308355), (15, 1385013), (21, 989295), (35, 593577), (45, 461671), (63, 329765), (101, 205695), (105, 197859), (303, 68565), (315, 65953), (505, 41139), (653, 31815), (707, 29385), (909, 22855), (1515, 13713), (1959, 10605), (2121, 9795), (3265, 6363), (3535, 5877), (4545, 4571)]