641973

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:236

約数の個数: 16

約数和(自身を含む): 910080

約数和(自身を除く): 268107

約数列:

[1, 3, 29, 47, 87, 141, 157, 471, 1363, 4089, 4553, 7379, 13659, 22137, 213991, 641973]

約数ペア:

[(1, 641973), (3, 213991), (29, 22137), (47, 13659), (87, 7379), (141, 4553), (157, 4089), (471, 1363)]