20913075

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2267}}^1$

素因数の和:2324

約数の個数: 36

約数和(自身を含む): 38388168

約数和(自身を除く): 17475093

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 123, 205, 225, 369, 615, 1025, 1845, 2267, 3075, 6801, 9225, 11335, 20403, 34005, 56675, 92947, 102015, 170025, 278841, 464735, 510075, 836523, 1394205, 2323675, 4182615, 6971025, 20913075]

約数ペア:

[(1, 20913075), (3, 6971025), (5, 4182615), (9, 2323675), (15, 1394205), (25, 836523), (41, 510075), (45, 464735), (75, 278841), (123, 170025), (205, 102015), (225, 92947), (369, 56675), (615, 34005), (1025, 20403), (1845, 11335), (2267, 9225), (3075, 6801)]