21801015

素因数分解:

$3^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{967}}^1$

素因数の和:1148

約数の個数: 32

約数和(自身を含む): 39029760

約数和(自身を除く): 17228745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 167, 501, 835, 967, 1503, 2505, 2901, 4509, 4835, 7515, 8703, 14505, 22545, 26109, 43515, 130545, 161489, 484467, 807445, 1453401, 2422335, 4360203, 7267005, 21801015]

約数ペア:

[(1, 21801015), (3, 7267005), (5, 4360203), (9, 2422335), (15, 1453401), (27, 807445), (45, 484467), (135, 161489), (167, 130545), (501, 43515), (835, 26109), (967, 22545), (1503, 14505), (2505, 8703), (2901, 7515), (4509, 4835)]