216975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 392832

約数和(自身を除く): 175857

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 263, 275, 789, 825, 1315, 2893, 3945, 6575, 8679, 14465, 19725, 43395, 72325, 216975]

約数ペア:

[(1, 216975), (3, 72325), (5, 43395), (11, 19725), (15, 14465), (25, 8679), (33, 6575), (55, 3945), (75, 2893), (165, 1315), (263, 825), (275, 789)]