21330537

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 30898560

約数和(自身を除く): 9568023

約数列:

[1, 3, 37, 41, 43, 109, 111, 123, 129, 327, 1517, 1591, 1763, 4033, 4469, 4551, 4687, 4773, 5289, 12099, 13407, 14061, 65231, 165353, 173419, 192167, 195693, 496059, 520257, 576501, 7110179, 21330537]

約数ペア:

[(1, 21330537), (3, 7110179), (37, 576501), (41, 520257), (43, 496059), (109, 195693), (111, 192167), (123, 173419), (129, 165353), (327, 65231), (1517, 14061), (1591, 13407), (1763, 12099), (4033, 5289), (4469, 4773), (4551, 4687)]