21921282

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{7757}}^1$

素因数の和:7922

約数の個数: 24

約数和(自身を含む): 47804796

約数和(自身を除く): 25883514

約数列:

[1, 2, 3, 6, 9, 18, 157, 314, 471, 942, 1413, 2826, 7757, 15514, 23271, 46542, 69813, 139626, 1217849, 2435698, 3653547, 7307094, 10960641, 21921282]

約数ペア:

[(1, 21921282), (2, 10960641), (3, 7307094), (6, 3653547), (9, 2435698), (18, 1217849), (157, 139626), (314, 69813), (471, 46542), (942, 23271), (1413, 15514), (2826, 7757)]