20686155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10369}}^1$

素因数の和:10403

約数の個数: 32

約数和(自身を含む): 39820800

約数和(自身を除く): 19134645

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10369, 31107, 51845, 72583, 155535, 197011, 217749, 362915, 591033, 985055, 1088745, 1379077, 2955165, 4137231, 6895385, 20686155]

約数ペア:

[(1, 20686155), (3, 6895385), (5, 4137231), (7, 2955165), (15, 1379077), (19, 1088745), (21, 985055), (35, 591033), (57, 362915), (95, 217749), (105, 197011), (133, 155535), (285, 72583), (399, 51845), (665, 31107), (1995, 10369)]