17985681

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4261}}^1$

素因数の和:4341

約数の個数: 24

約数和(自身を含む): 30140864

約数和(自身を除く): 12155183

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 4261, 12783, 29827, 38349, 89481, 268443, 285487, 856461, 1998409, 2569383, 5995227, 17985681]

約数ペア:

[(1, 17985681), (3, 5995227), (7, 2569383), (9, 1998409), (21, 856461), (63, 285487), (67, 268443), (201, 89481), (469, 38349), (603, 29827), (1407, 12783), (4221, 4261)]