21807309885

素因数分解:

$3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{739}}^1\times {\mathrm{7001}}^1$

素因数の和:8029

約数の個数: 32

約数和(自身を含む): 35068256640

約数和(自身を除く): 13260946755

約数列:

[1, 3, 5, 15, 281, 739, 843, 1405, 2217, 3695, 4215, 7001, 11085, 21003, 35005, 105015, 207659, 622977, 1038295, 1967281, 3114885, 5173739, 5901843, 9836405, 15521217, 25868695, 29509215, 77606085, 1453820659, 4361461977, 7269103295, 21807309885]

約数ペア:

[(1, 21807309885), (3, 7269103295), (5, 4361461977), (15, 1453820659), (281, 77606085), (739, 29509215), (843, 25868695), (1405, 15521217), (2217, 9836405), (3695, 5901843), (4215, 5173739), (7001, 3114885), (11085, 1967281), (21003, 1038295), (35005, 622977), (105015, 207659)]