21413121

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1\times {\mathrm{509}}^1$

素因数の和:928

約数の個数: 16

約数和(自身を含む): 29457600

約数和(自身を除く): 8044479

約数列:

[1, 3, 37, 111, 379, 509, 1137, 1527, 14023, 18833, 42069, 56499, 192911, 578733, 7137707, 21413121]

約数ペア:

[(1, 21413121), (3, 7137707), (37, 578733), (111, 192911), (379, 56499), (509, 42069), (1137, 18833), (1527, 14023)]