991738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:813

約数の個数: 16

約数和(自身を含む): 1651680

約数和(自身を除く): 659942

約数列:

[1, 2, 11, 22, 61, 122, 671, 739, 1342, 1478, 8129, 16258, 45079, 90158, 495869, 991738]

約数ペア:

[(1, 991738), (2, 495869), (11, 90158), (22, 45079), (61, 16258), (122, 8129), (671, 1478), (739, 1342)]