18420128

素因数分解:

$2^5\times {\mathrm{109}}^1\times {\mathrm{5281}}^1$

素因数の和:5400

約数の個数: 24

約数和(自身を含む): 36604260

約数和(自身を除く): 18184132

約数列:

[1, 2, 4, 8, 16, 32, 109, 218, 436, 872, 1744, 3488, 5281, 10562, 21124, 42248, 84496, 168992, 575629, 1151258, 2302516, 4605032, 9210064, 18420128]

約数ペア:

[(1, 18420128), (2, 9210064), (4, 4605032), (8, 2302516), (16, 1151258), (32, 575629), (109, 168992), (218, 84496), (436, 42248), (872, 21124), (1744, 10562), (3488, 5281)]