21815595

素因数分解:

$3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3049}}^1$

素因数の和:3116

約数の個数: 32

約数和(自身を含む): 39528000

約数和(自身を除く): 17712405

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 135, 159, 265, 477, 795, 1431, 2385, 3049, 7155, 9147, 15245, 27441, 45735, 82323, 137205, 161597, 411615, 484791, 807985, 1454373, 2423955, 4363119, 7271865, 21815595]

約数ペア:

[(1, 21815595), (3, 7271865), (5, 4363119), (9, 2423955), (15, 1454373), (27, 807985), (45, 484791), (53, 411615), (135, 161597), (159, 137205), (265, 82323), (477, 45735), (795, 27441), (1431, 15245), (2385, 9147), (3049, 7155)]