21696039

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{5393}}^1$

素因数の和:5551

約数の個数: 16

約数和(自身を含む): 32364000

約数和(自身を除く): 10667961

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 5393, 16179, 48537, 145611, 803557, 2410671, 7232013, 21696039]

約数ペア:

[(1, 21696039), (3, 7232013), (9, 2410671), (27, 803557), (149, 145611), (447, 48537), (1341, 16179), (4023, 5393)]