20776215

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{271}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 14474985

約数列:

[1, 3, 5, 15, 19, 57, 95, 269, 271, 285, 807, 813, 1345, 1355, 4035, 4065, 5111, 5149, 15333, 15447, 25555, 25745, 72899, 76665, 77235, 218697, 364495, 1093485, 1385081, 4155243, 6925405, 20776215]

約数ペア:

[(1, 20776215), (3, 6925405), (5, 4155243), (15, 1385081), (19, 1093485), (57, 364495), (95, 218697), (269, 77235), (271, 76665), (285, 72899), (807, 25745), (813, 25555), (1345, 15447), (1355, 15333), (4035, 5149), (4065, 5111)]