267979647

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{1669}}^1$

素因数の和:1887

約数の個数: 32

約数和(自身を含む): 404006400

約数和(自身を除く): 136026753

約数列:

[1, 3, 13, 23, 39, 69, 179, 299, 537, 897, 1669, 2327, 4117, 5007, 6981, 12351, 21697, 38387, 53521, 65091, 115161, 160563, 298751, 499031, 896253, 1497093, 3883763, 6871273, 11651289, 20613819, 89326549, 267979647]

約数ペア:

[(1, 267979647), (3, 89326549), (13, 20613819), (23, 11651289), (39, 6871273), (69, 3883763), (179, 1497093), (299, 896253), (537, 499031), (897, 298751), (1669, 160563), (2327, 115161), (4117, 65091), (5007, 53521), (6981, 38387), (12351, 21697)]