21012888

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67349}}^1$

素因数の和:67371

約数の個数: 32

約数和(自身を含む): 56574000

約数和(自身を除く): 35561112

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67349, 134698, 202047, 269396, 404094, 538792, 808188, 875537, 1616376, 1751074, 2626611, 3502148, 5253222, 7004296, 10506444, 21012888]

約数ペア:

[(1, 21012888), (2, 10506444), (3, 7004296), (4, 5253222), (6, 3502148), (8, 2626611), (12, 1751074), (13, 1616376), (24, 875537), (26, 808188), (39, 538792), (52, 404094), (78, 269396), (104, 202047), (156, 134698), (312, 67349)]