21285075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40543}}^1$

素因数の和:40563

約数の個数: 24

約数和(自身を含む): 40219648

約数和(自身を除く): 18934573

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40543, 121629, 202715, 283801, 608145, 851403, 1013575, 1419005, 3040725, 4257015, 7095025, 21285075]

約数ペア:

[(1, 21285075), (3, 7095025), (5, 4257015), (7, 3040725), (15, 1419005), (21, 1013575), (25, 851403), (35, 608145), (75, 283801), (105, 202715), (175, 121629), (525, 40543)]