1331808478

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{665239}}^1$

素因数の和:665272

約数の個数: 32

約数和(自身を含む): 2682247680

約数和(自身を除く): 1350439202

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002, 665239, 1330478, 4656673, 7317629, 8648107, 9313346, 14635258, 17296214, 51223403, 60536749, 95129177, 102446806, 121073498, 190258354, 665904239, 1331808478]

約数ペア:

[(1, 1331808478), (2, 665904239), (7, 190258354), (11, 121073498), (13, 102446806), (14, 95129177), (22, 60536749), (26, 51223403), (77, 17296214), (91, 14635258), (143, 9313346), (154, 8648107), (182, 7317629), (286, 4656673), (1001, 1330478), (2002, 665239)]