21744105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1201}}^1$

素因数の和:1297

約数の個数: 32

約数和(自身を含む): 37387008

約数和(自身を除く): 15642903

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1201, 1207, 3603, 3621, 6005, 6035, 18015, 18105, 20417, 61251, 85271, 102085, 255813, 306255, 426355, 1279065, 1449607, 4348821, 7248035, 21744105]

約数ペア:

[(1, 21744105), (3, 7248035), (5, 4348821), (15, 1449607), (17, 1279065), (51, 426355), (71, 306255), (85, 255813), (213, 102085), (255, 85271), (355, 61251), (1065, 20417), (1201, 18105), (1207, 18015), (3603, 6035), (3621, 6005)]