17998415

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 6193585

約数列:

[1, 5, 19, 29, 47, 95, 139, 145, 235, 551, 695, 893, 1363, 2641, 2755, 4031, 4465, 6533, 6815, 13205, 20155, 25897, 32665, 76589, 124127, 129485, 189457, 382945, 620635, 947285, 3599683, 17998415]

約数ペア:

[(1, 17998415), (5, 3599683), (19, 947285), (29, 620635), (47, 382945), (95, 189457), (139, 129485), (145, 124127), (235, 76589), (551, 32665), (695, 25897), (893, 20155), (1363, 13205), (2641, 6815), (2755, 6533), (4031, 4465)]