18977470

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21323}}^1$

素因数の和:21419

約数の個数: 16

約数和(自身を含む): 34544880

約数和(自身を除く): 15567410

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21323, 42646, 106615, 213230, 1897747, 3795494, 9488735, 18977470]

約数ペア:

[(1, 18977470), (2, 9488735), (5, 3795494), (10, 1897747), (89, 213230), (178, 106615), (445, 42646), (890, 21323)]