21044313

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{5231}}^1$

素因数の和:5389

約数の個数: 16

約数和(自身を含む): 31392000

約数和(自身を除く): 10347687

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 5231, 15693, 47079, 141237, 779419, 2338257, 7014771, 21044313]

約数ペア:

[(1, 21044313), (3, 7014771), (9, 2338257), (27, 779419), (149, 141237), (447, 47079), (1341, 15693), (4023, 5231)]