221471709

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1\times {\mathrm{5189}}^1$

素因数の和:5580

約数の個数: 16

約数和(自身を含む): 303428160

約数和(自身を除く): 81956451

約数列:

[1, 3, 41, 123, 347, 1041, 5189, 14227, 15567, 42681, 212749, 638247, 1800583, 5401749, 73823903, 221471709]

約数ペア:

[(1, 221471709), (3, 73823903), (41, 5401749), (123, 1800583), (347, 638247), (1041, 212749), (5189, 42681), (14227, 15567)]