19764135

素因数分解:

$3^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{521}}^1$

素因数の和:816

約数の個数: 32

約数和(自身を含む): 35328960

約数和(自身を除く): 15564825

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 281, 521, 843, 1405, 1563, 2529, 2605, 4215, 4689, 7587, 7815, 12645, 14067, 23445, 37935, 70335, 146401, 439203, 732005, 1317609, 2196015, 3952827, 6588045, 19764135]

約数ペア:

[(1, 19764135), (3, 6588045), (5, 3952827), (9, 2196015), (15, 1317609), (27, 732005), (45, 439203), (135, 146401), (281, 70335), (521, 37935), (843, 23445), (1405, 14067), (1563, 12645), (2529, 7815), (2605, 7587), (4215, 4689)]