641763

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 1019200

約数和(自身を除く): 377437

約数列:

[1, 3, 9, 19, 27, 57, 81, 139, 171, 243, 417, 513, 1251, 1539, 2641, 3753, 4617, 7923, 11259, 23769, 33777, 71307, 213921, 641763]

約数ペア:

[(1, 641763), (3, 213921), (9, 71307), (19, 33777), (27, 23769), (57, 11259), (81, 7923), (139, 4617), (171, 3753), (243, 2641), (417, 1539), (513, 1251)]