16121775

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4999}}^1$

素因数の和:5055

約数の個数: 24

約数和(自身を含む): 27280000

約数和(自身を除く): 11158225

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 4999, 14997, 24995, 74985, 124975, 214957, 374925, 644871, 1074785, 3224355, 5373925, 16121775]

約数ペア:

[(1, 16121775), (3, 5373925), (5, 3224355), (15, 1074785), (25, 644871), (43, 374925), (75, 214957), (129, 124975), (215, 74985), (645, 24995), (1075, 14997), (3225, 4999)]