19887285

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2803}}^1$

素因数の和:2865

約数の個数: 32

約数和(自身を含む): 35532288

約数和(自身を除く): 15645003

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 129, 165, 215, 473, 645, 1419, 2365, 2803, 7095, 8409, 14015, 30833, 42045, 92499, 120529, 154165, 361587, 462495, 602645, 1325819, 1807935, 3977457, 6629095, 19887285]

約数ペア:

[(1, 19887285), (3, 6629095), (5, 3977457), (11, 1807935), (15, 1325819), (33, 602645), (43, 462495), (55, 361587), (129, 154165), (165, 120529), (215, 92499), (473, 42045), (645, 30833), (1419, 14015), (2365, 8409), (2803, 7095)]