21822045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 42287616

約数和(自身を除く): 20465571

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 41, 105, 111, 123, 137, 185, 205, 259, 287, 411, 555, 615, 685, 777, 861, 959, 1295, 1435, 1517, 2055, 2877, 3885, 4305, 4551, 4795, 5069, 5617, 7585, 10619, 14385, 15207, 16851, 22755, 25345, 28085, 31857, 35483, 39319, 53095, 76035, 84255, 106449, 117957, 159285, 177415, 196595, 207829, 532245, 589785, 623487, 1039145, 1454803, 3117435, 4364409, 7274015, 21822045]

約数ペア:

[(1, 21822045), (3, 7274015), (5, 4364409), (7, 3117435), (15, 1454803), (21, 1039145), (35, 623487), (37, 589785), (41, 532245), (105, 207829), (111, 196595), (123, 177415), (137, 159285), (185, 117957), (205, 106449), (259, 84255), (287, 76035), (411, 53095), (555, 39319), (615, 35483), (685, 31857), (777, 28085), (861, 25345), (959, 22755), (1295, 16851), (1435, 15207), (1517, 14385), (2055, 10619), (2877, 7585), (3885, 5617), (4305, 5069), (4551, 4795)]