215511438

素因数分解:

$2^1\times 3^1\times {\mathrm{139}}^1\times {\mathrm{258407}}^1$

素因数の和:258551

約数の個数: 16

約数和(自身を含む): 434125440

約数和(自身を除く): 218614002

約数列:

[1, 2, 3, 6, 139, 278, 417, 834, 258407, 516814, 775221, 1550442, 35918573, 71837146, 107755719, 215511438]

約数ペア:

[(1, 215511438), (2, 107755719), (3, 71837146), (6, 35918573), (139, 1550442), (278, 775221), (417, 516814), (834, 258407)]