21004487994

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{500106857}}^1$

素因数の和:500106869

約数の個数: 16

約数和(自身を含む): 48010258368

約数和(自身を除く): 27005770374

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 500106857, 1000213714, 1500320571, 3000641142, 3500747999, 7001495998, 10502243997, 21004487994]

約数ペア:

[(1, 21004487994), (2, 10502243997), (3, 7001495998), (6, 3500747999), (7, 3000641142), (14, 1500320571), (21, 1000213714), (42, 500106857)]