10781428

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12421}}^1$

素因数の和:12463

約数の個数: 24

約数和(自身を含む): 22260224

約数和(自身を除く): 11478796

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 12421, 24842, 49684, 86947, 173894, 347788, 385051, 770102, 1540204, 2695357, 5390714, 10781428]

約数ペア:

[(1, 10781428), (2, 5390714), (4, 2695357), (7, 1540204), (14, 770102), (28, 385051), (31, 347788), (62, 173894), (124, 86947), (217, 49684), (434, 24842), (868, 12421)]