628257021

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1574579}}^1$

素因数の和:1574608

約数の個数: 16

約数和(自身を含む): 1007731200

約数和(自身を除く): 379474179

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1574579, 4723737, 11022053, 29917001, 33066159, 89751003, 209419007, 628257021]

約数ペア:

[(1, 628257021), (3, 209419007), (7, 89751003), (19, 33066159), (21, 29917001), (57, 11022053), (133, 4723737), (399, 1574579)]