2021008245

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1\times {\mathrm{271}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 3459317760

約数和(自身を除く): 1438309515

約数列:

[1, 3, 5, 15, 19, 57, 95, 137, 191, 271, 285, 411, 573, 685, 813, 955, 1355, 2055, 2603, 2865, 3629, 4065, 5149, 7809, 10887, 13015, 15447, 18145, 25745, 26167, 37127, 39045, 51761, 54435, 77235, 78501, 111381, 130835, 155283, 185635, 258805, 392505, 497173, 556905, 705413, 776415, 983459, 1491519, 2116239, 2485865, 2950377, 3527065, 4917295, 7091257, 7457595, 10581195, 14751885, 21273771, 35456285, 106368855, 134733883, 404201649, 673669415, 2021008245]

約数ペア:

[(1, 2021008245), (3, 673669415), (5, 404201649), (15, 134733883), (19, 106368855), (57, 35456285), (95, 21273771), (137, 14751885), (191, 10581195), (271, 7457595), (285, 7091257), (411, 4917295), (573, 3527065), (685, 2950377), (813, 2485865), (955, 2116239), (1355, 1491519), (2055, 983459), (2603, 776415), (2865, 705413), (3629, 556905), (4065, 497173), (5149, 392505), (7809, 258805), (10887, 185635), (13015, 155283), (15447, 130835), (18145, 111381), (25745, 78501), (26167, 77235), (37127, 54435), (39045, 51761)]