1920173913

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{429281}}^1$

素因数の和:429365

約数の個数: 24

約数和(自身を含む): 3214463616

約数和(自身を除く): 1294289703

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 429281, 1287843, 3004967, 3863529, 9014901, 27044703, 30478951, 91436853, 213352657, 274310559, 640057971, 1920173913]

約数ペア:

[(1, 1920173913), (3, 640057971), (7, 274310559), (9, 213352657), (21, 91436853), (63, 30478951), (71, 27044703), (213, 9014901), (497, 3863529), (639, 3004967), (1491, 1287843), (4473, 429281)]