21718730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{569}}^1$

素因数の和:934

約数の個数: 32

約数和(自身を含む): 42845760

約数和(自身を除く): 21127030

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 347, 569, 694, 1138, 1735, 2845, 3470, 3817, 5690, 6259, 7634, 12518, 19085, 31295, 38170, 62590, 197443, 394886, 987215, 1974430, 2171873, 4343746, 10859365, 21718730]

約数ペア:

[(1, 21718730), (2, 10859365), (5, 4343746), (10, 2171873), (11, 1974430), (22, 987215), (55, 394886), (110, 197443), (347, 62590), (569, 38170), (694, 31295), (1138, 19085), (1735, 12518), (2845, 7634), (3470, 6259), (3817, 5690)]