21491472

素因数分解:

$2^4\times 3^1\times {\mathrm{389}}^1\times {\mathrm{1151}}^1$

素因数の和:1551

約数の個数: 40

約数和(自身を含む): 55710720

約数和(自身を除く): 34219248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 389, 778, 1151, 1167, 1556, 2302, 2334, 3112, 3453, 4604, 4668, 6224, 6906, 9208, 9336, 13812, 18416, 18672, 27624, 55248, 447739, 895478, 1343217, 1790956, 2686434, 3581912, 5372868, 7163824, 10745736, 21491472]

約数ペア:

[(1, 21491472), (2, 10745736), (3, 7163824), (4, 5372868), (6, 3581912), (8, 2686434), (12, 1790956), (16, 1343217), (24, 895478), (48, 447739), (389, 55248), (778, 27624), (1151, 18672), (1167, 18416), (1556, 13812), (2302, 9336), (2334, 9208), (3112, 6906), (3453, 6224), (4604, 4668)]