21908075

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5443}}^1$

素因数の和:5483

約数の個数: 24

約数和(自身を含む): 32402688

約数和(自身を除く): 10494613

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 5443, 27215, 38101, 125189, 136075, 190505, 625945, 876323, 952525, 3129725, 4381615, 21908075]

約数ペア:

[(1, 21908075), (5, 4381615), (7, 3129725), (23, 952525), (25, 876323), (35, 625945), (115, 190505), (161, 136075), (175, 125189), (575, 38101), (805, 27215), (4025, 5443)]