209210841

素因数分解:

$3^2\times 7^2\times {\mathrm{181}}^1\times {\mathrm{2621}}^1$

素因数の和:2822

約数の個数: 36

約数和(自身を含む): 353608164

約数和(自身を除く): 144397323

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 181, 441, 543, 1267, 1629, 2621, 3801, 7863, 8869, 11403, 18347, 23589, 26607, 55041, 79821, 128429, 165123, 385287, 474401, 1155861, 1423203, 3320807, 4269609, 9962421, 23245649, 29887263, 69736947, 209210841]

約数ペア:

[(1, 209210841), (3, 69736947), (7, 29887263), (9, 23245649), (21, 9962421), (49, 4269609), (63, 3320807), (147, 1423203), (181, 1155861), (441, 474401), (543, 385287), (1267, 165123), (1629, 128429), (2621, 79821), (3801, 55041), (7863, 26607), (8869, 23589), (11403, 18347)]