21333531

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1\times {\mathrm{647}}^1$

素因数の和:1058

約数の個数: 16

約数和(自身を含む): 29548800

約数和(自身を除く): 8215269

約数列:

[1, 3, 29, 87, 379, 647, 1137, 1941, 10991, 18763, 32973, 56289, 245213, 735639, 7111177, 21333531]

約数ペア:

[(1, 21333531), (3, 7111177), (29, 735639), (87, 245213), (379, 56289), (647, 32973), (1137, 18763), (1941, 10991)]