21643144

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 41616000

約数和(自身を除く): 19972856

約数列:

[1, 2, 4, 8, 67, 134, 149, 268, 271, 298, 536, 542, 596, 1084, 1192, 2168, 9983, 18157, 19966, 36314, 39932, 40379, 72628, 79864, 80758, 145256, 161516, 323032, 2705393, 5410786, 10821572, 21643144]

約数ペア:

[(1, 21643144), (2, 10821572), (4, 5410786), (8, 2705393), (67, 323032), (134, 161516), (149, 145256), (268, 80758), (271, 79864), (298, 72628), (536, 40379), (542, 39932), (596, 36314), (1084, 19966), (1192, 18157), (2168, 9983)]