21830541

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 9798771

約数列:

[1, 3, 31, 43, 53, 93, 103, 129, 159, 309, 1333, 1643, 2279, 3193, 3999, 4429, 4929, 5459, 6837, 9579, 13287, 16377, 70649, 137299, 169229, 211947, 234737, 411897, 507687, 704211, 7276847, 21830541]

約数ペア:

[(1, 21830541), (3, 7276847), (31, 704211), (43, 507687), (53, 411897), (93, 234737), (103, 211947), (129, 169229), (159, 137299), (309, 70649), (1333, 16377), (1643, 13287), (2279, 9579), (3193, 6837), (3999, 5459), (4429, 4929)]