81664478

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{26881}}^1$

素因数の和:26928

約数の個数: 24

約数和(自身を含む): 147098304

約数和(自身を除く): 65433826

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 434, 1519, 3038, 26881, 53762, 188167, 376334, 833311, 1317169, 1666622, 2634338, 5833177, 11666354, 40832239, 81664478]

約数ペア:

[(1, 81664478), (2, 40832239), (7, 11666354), (14, 5833177), (31, 2634338), (49, 1666622), (62, 1317169), (98, 833311), (217, 376334), (434, 188167), (1519, 53762), (3038, 26881)]