639731673

素因数分解:

$3^2\times 7^1\times {\mathrm{1153}}^1\times {\mathrm{8807}}^1$

素因数の和:9973

約数の個数: 24

約数和(自身を含む): 1057100928

約数和(自身を除く): 417369255

約数列:

[1, 3, 7, 9, 21, 63, 1153, 3459, 8071, 8807, 10377, 24213, 26421, 61649, 72639, 79263, 184947, 554841, 10154471, 30463413, 71081297, 91390239, 213243891, 639731673]

約数ペア:

[(1, 639731673), (3, 213243891), (7, 91390239), (9, 71081297), (21, 30463413), (63, 10154471), (1153, 554841), (3459, 184947), (8071, 79263), (8807, 72639), (10377, 61649), (24213, 26421)]