20278714

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:294

約数の個数: 32

約数和(自身を含む): 33073920

約数和(自身を除く): 12795206

約数列:

[1, 2, 29, 43, 47, 58, 86, 94, 173, 346, 1247, 1363, 2021, 2494, 2726, 4042, 5017, 7439, 8131, 10034, 14878, 16262, 58609, 117218, 215731, 235799, 349633, 431462, 471598, 699266, 10139357, 20278714]

約数ペア:

[(1, 20278714), (2, 10139357), (29, 699266), (43, 471598), (47, 431462), (58, 349633), (86, 235799), (94, 215731), (173, 117218), (346, 58609), (1247, 16262), (1363, 14878), (2021, 10034), (2494, 8131), (2726, 7439), (4042, 5017)]