19798465

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{467}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 24373440

約数和(自身を除く): 4574975

約数列:

[1, 5, 61, 139, 305, 467, 695, 2335, 8479, 28487, 42395, 64913, 142435, 324565, 3959693, 19798465]

約数ペア:

[(1, 19798465), (5, 3959693), (61, 324565), (139, 142435), (305, 64913), (467, 42395), (695, 28487), (2335, 8479)]