397759971

素因数分解:

$3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1\times {\mathrm{541}}^1$

素因数の和:931

約数の個数: 32

約数和(自身を含む): 613838848

約数和(自身を除く): 216078877

約数列:

[1, 3, 7, 21, 157, 223, 471, 541, 669, 1099, 1561, 1623, 3297, 3787, 4683, 11361, 35011, 84937, 105033, 120643, 245077, 254811, 361929, 594559, 735231, 844501, 1783677, 2533503, 18940951, 56822853, 132586657, 397759971]

約数ペア:

[(1, 397759971), (3, 132586657), (7, 56822853), (21, 18940951), (157, 2533503), (223, 1783677), (471, 844501), (541, 735231), (669, 594559), (1099, 361929), (1561, 254811), (1623, 245077), (3297, 120643), (3787, 105033), (4683, 84937), (11361, 35011)]