20878858

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10429}}^1$

素因数の和:10462

約数の個数: 32

約数和(自身を含む): 42053760

約数和(自身を除く): 21174902

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002, 10429, 20858, 73003, 114719, 135577, 146006, 229438, 271154, 803033, 949039, 1491347, 1606066, 1898078, 2982694, 10439429, 20878858]

約数ペア:

[(1, 20878858), (2, 10439429), (7, 2982694), (11, 1898078), (13, 1606066), (14, 1491347), (22, 949039), (26, 803033), (77, 271154), (91, 229438), (143, 146006), (154, 135577), (182, 114719), (286, 73003), (1001, 20858), (2002, 10429)]