218522017

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{577}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 260932320

約数和(自身を除く): 42410303

約数列:

[1, 7, 49, 59, 131, 413, 577, 917, 2891, 4039, 6419, 7729, 28273, 34043, 54103, 75587, 238301, 378721, 529109, 1668107, 3703763, 4459633, 31217431, 218522017]

約数ペア:

[(1, 218522017), (7, 31217431), (49, 4459633), (59, 3703763), (131, 1668107), (413, 529109), (577, 378721), (917, 238301), (2891, 75587), (4039, 54103), (6419, 34043), (7729, 28273)]