40578447

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{148639}}^1$

素因数の和:148662

約数の個数: 16

約数和(自身を含む): 66590720

約数和(自身を除く): 26012273

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 148639, 445917, 1040473, 1932307, 3121419, 5796921, 13526149, 40578447]

約数ペア:

[(1, 40578447), (3, 13526149), (7, 5796921), (13, 3121419), (21, 1932307), (39, 1040473), (91, 445917), (273, 148639)]