19810870

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{37379}}^1$

素因数の和:37439

約数の個数: 16

約数和(自身を含む): 36333360

約数和(自身を除く): 16522490

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 37379, 74758, 186895, 373790, 1981087, 3962174, 9905435, 19810870]

約数ペア:

[(1, 19810870), (2, 9905435), (5, 3962174), (10, 1981087), (53, 373790), (106, 186895), (265, 74758), (530, 37379)]