21990282

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2729}}^1$

素因数の和:2830

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 25184118

約数列:

[1, 2, 3, 6, 17, 34, 51, 79, 102, 158, 237, 474, 1343, 2686, 2729, 4029, 5458, 8058, 8187, 16374, 46393, 92786, 139179, 215591, 278358, 431182, 646773, 1293546, 3665047, 7330094, 10995141, 21990282]

約数ペア:

[(1, 21990282), (2, 10995141), (3, 7330094), (6, 3665047), (17, 1293546), (34, 646773), (51, 431182), (79, 278358), (102, 215591), (158, 139179), (237, 92786), (474, 46393), (1343, 16374), (2686, 8187), (2729, 8058), (4029, 5458)]