199979997

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{501203}}^1$

素因数の和:501232

約数の個数: 16

約数和(自身を含む): 320770560

約数和(自身を除く): 120790563

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 501203, 1503609, 3508421, 9522857, 10525263, 28568571, 66659999, 199979997]

約数ペア:

[(1, 199979997), (3, 66659999), (7, 28568571), (19, 10525263), (21, 9522857), (57, 3508421), (133, 1503609), (399, 501203)]