21110515

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{2459}}^1$

素因数の和:2582

約数の個数: 16

約数和(自身を含む): 27099360

約数和(自身を除く): 5988845

約数列:

[1, 5, 17, 85, 101, 505, 1717, 2459, 8585, 12295, 41803, 209015, 248359, 1241795, 4222103, 21110515]

約数ペア:

[(1, 21110515), (5, 4222103), (17, 1241795), (85, 248359), (101, 209015), (505, 41803), (1717, 12295), (2459, 8585)]