21141896

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1499}}^1$

素因数の和:1589

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 20438104

約数列:

[1, 2, 4, 8, 41, 43, 82, 86, 164, 172, 328, 344, 1499, 1763, 2998, 3526, 5996, 7052, 11992, 14104, 61459, 64457, 122918, 128914, 245836, 257828, 491672, 515656, 2642737, 5285474, 10570948, 21141896]

約数ペア:

[(1, 21141896), (2, 10570948), (4, 5285474), (8, 2642737), (41, 515656), (43, 491672), (82, 257828), (86, 245836), (164, 128914), (172, 122918), (328, 64457), (344, 61459), (1499, 14104), (1763, 11992), (2998, 7052), (3526, 5996)]