9991228

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{709}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 18925760

約数和(自身を除く): 8934532

約数列:

[1, 2, 4, 13, 26, 52, 271, 542, 709, 1084, 1418, 2836, 3523, 7046, 9217, 14092, 18434, 36868, 192139, 384278, 768556, 2497807, 4995614, 9991228]

約数ペア:

[(1, 9991228), (2, 4995614), (4, 2497807), (13, 768556), (26, 384278), (52, 192139), (271, 36868), (542, 18434), (709, 14092), (1084, 9217), (1418, 7046), (2836, 3523)]