21419493

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{443}}^1$

素因数の和:744

約数の個数: 16

約数和(自身を含む): 29154816

約数和(自身を除く): 7735323

約数列:

[1, 3, 71, 213, 227, 443, 681, 1329, 16117, 31453, 48351, 94359, 100561, 301683, 7139831, 21419493]

約数ペア:

[(1, 21419493), (3, 7139831), (71, 301683), (213, 100561), (227, 94359), (443, 48351), (681, 31453), (1329, 16117)]