21694065

素因数分解:

$3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3643}}^1$

素因数の和:4048

約数の個数: 16

約数和(自身を含む): 34807488

約数和(自身を除く): 13113423

約数列:

[1, 3, 5, 15, 397, 1191, 1985, 3643, 5955, 10929, 18215, 54645, 1446271, 4338813, 7231355, 21694065]

約数ペア:

[(1, 21694065), (3, 7231355), (5, 4338813), (15, 1446271), (397, 54645), (1191, 18215), (1985, 10929), (3643, 5955)]