21380458918

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{15121}}^1$

素因数の和:15617

約数の個数: 64

約数和(自身を含む): 41887698048

約数和(自身を除く): 20507239130

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 182, 221, 238, 442, 457, 914, 1547, 3094, 3199, 5941, 6398, 7769, 11882, 15121, 15538, 30242, 41587, 54383, 83174, 100997, 105847, 108766, 196573, 201994, 211694, 257057, 393146, 514114, 706979, 1376011, 1413958, 1799399, 2752022, 3341741, 3598798, 6683482, 6910297, 13820594, 23392187, 46784374, 48372079, 89833861, 96744158, 117475049, 179667722, 234950098, 628837027, 822325343, 1257674054, 1527175637, 1644650686, 3054351274, 10690229459, 21380458918]

約数ペア:

[(1, 21380458918), (2, 10690229459), (7, 3054351274), (13, 1644650686), (14, 1527175637), (17, 1257674054), (26, 822325343), (34, 628837027), (91, 234950098), (119, 179667722), (182, 117475049), (221, 96744158), (238, 89833861), (442, 48372079), (457, 46784374), (914, 23392187), (1547, 13820594), (3094, 6910297), (3199, 6683482), (5941, 3598798), (6398, 3341741), (7769, 2752022), (11882, 1799399), (15121, 1413958), (15538, 1376011), (30242, 706979), (41587, 514114), (54383, 393146), (83174, 257057), (100997, 211694), (105847, 201994), (108766, 196573)]