20219686

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 33406560

約数和(自身を除く): 13186874

約数列:

[1, 2, 19, 37, 38, 73, 74, 146, 197, 394, 703, 1387, 1406, 2701, 2774, 3743, 5402, 7289, 7486, 14381, 14578, 28762, 51319, 102638, 138491, 273239, 276982, 532097, 546478, 1064194, 10109843, 20219686]

約数ペア:

[(1, 20219686), (2, 10109843), (19, 1064194), (37, 546478), (38, 532097), (73, 276982), (74, 273239), (146, 138491), (197, 102638), (394, 51319), (703, 28762), (1387, 14578), (1406, 14381), (2701, 7486), (2774, 7289), (3743, 5402)]