217396107

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{521}}^1\times {\mathrm{653}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 319539168

約数和(自身を除く): 102143061

約数列:

[1, 3, 9, 71, 213, 521, 639, 653, 1563, 1959, 4689, 5877, 36991, 46363, 110973, 139089, 332919, 340213, 417267, 1020639, 3061917, 24155123, 72465369, 217396107]

約数ペア:

[(1, 217396107), (3, 72465369), (9, 24155123), (71, 3061917), (213, 1020639), (521, 417267), (639, 340213), (653, 332919), (1563, 139089), (1959, 110973), (4689, 46363), (5877, 36991)]