211301265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 400725504

約数和(自身を除く): 189424239

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 137, 185, 259, 397, 411, 555, 685, 777, 959, 1191, 1295, 1985, 2055, 2779, 2877, 3885, 4795, 5069, 5955, 8337, 13895, 14385, 14689, 15207, 25345, 35483, 41685, 44067, 54389, 73445, 76035, 102823, 106449, 163167, 177415, 220335, 271945, 308469, 380723, 514115, 532245, 815835, 1142169, 1542345, 1903615, 2012393, 5710845, 6037179, 10061965, 14086751, 30185895, 42260253, 70433755, 211301265]

約数ペア:

[(1, 211301265), (3, 70433755), (5, 42260253), (7, 30185895), (15, 14086751), (21, 10061965), (35, 6037179), (37, 5710845), (105, 2012393), (111, 1903615), (137, 1542345), (185, 1142169), (259, 815835), (397, 532245), (411, 514115), (555, 380723), (685, 308469), (777, 271945), (959, 220335), (1191, 177415), (1295, 163167), (1985, 106449), (2055, 102823), (2779, 76035), (2877, 73445), (3885, 54389), (4795, 44067), (5069, 41685), (5955, 35483), (8337, 25345), (13895, 15207), (14385, 14689)]