21648438

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{57271}}^1$

素因数の和:57289

約数の個数: 32

約数和(自身を含む): 54981120

約数和(自身を除く): 33332682

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 57271, 114542, 171813, 343626, 400897, 515439, 801794, 1030878, 1202691, 1546317, 2405382, 3092634, 3608073, 7216146, 10824219, 21648438]

約数ペア:

[(1, 21648438), (2, 10824219), (3, 7216146), (6, 3608073), (7, 3092634), (9, 2405382), (14, 1546317), (18, 1202691), (21, 1030878), (27, 801794), (42, 515439), (54, 400897), (63, 343626), (126, 171813), (189, 114542), (378, 57271)]