15921009

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 25818240

約数和(自身を除く): 9897231

約数列:

[1, 3, 9, 13, 27, 39, 67, 117, 201, 351, 603, 677, 871, 1809, 2031, 2613, 6093, 7839, 8801, 18279, 23517, 26403, 45359, 79209, 136077, 237627, 408231, 589667, 1224693, 1769001, 5307003, 15921009]

約数ペア:

[(1, 15921009), (3, 5307003), (9, 1769001), (13, 1224693), (27, 589667), (39, 408231), (67, 237627), (117, 136077), (201, 79209), (351, 45359), (603, 26403), (677, 23517), (871, 18279), (1809, 8801), (2031, 7839), (2613, 6093)]