20209515

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1933}}^1$

素因数の和:1999

約数の個数: 32

約数和(自身を含む): 35090496

約数和(自身を除く): 14880981

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 1933, 2091, 3485, 5799, 9665, 10455, 28995, 32861, 79253, 98583, 164305, 237759, 396265, 492915, 1188795, 1347301, 4041903, 6736505, 20209515]

約数ペア:

[(1, 20209515), (3, 6736505), (5, 4041903), (15, 1347301), (17, 1188795), (41, 492915), (51, 396265), (85, 237759), (123, 164305), (205, 98583), (255, 79253), (615, 32861), (697, 28995), (1933, 10455), (2091, 9665), (3485, 5799)]