221339745

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{907}}^1$

素因数の和:975

約数の個数: 96

約数和(自身を含む): 458939520

約数和(自身を除く): 237599775

約数列:

[1, 3, 5, 9, 11, 15, 17, 29, 33, 45, 51, 55, 85, 87, 99, 145, 153, 165, 187, 255, 261, 319, 435, 493, 495, 561, 765, 907, 935, 957, 1305, 1479, 1595, 1683, 2465, 2721, 2805, 2871, 4437, 4535, 4785, 5423, 7395, 8163, 8415, 9977, 13605, 14355, 15419, 16269, 22185, 26303, 27115, 29931, 40815, 46257, 48807, 49885, 77095, 78909, 81345, 89793, 131515, 138771, 149655, 169609, 231285, 236727, 244035, 289333, 394545, 447151, 448965, 508827, 693855, 848045, 867999, 1183635, 1341453, 1446665, 1526481, 2235755, 2544135, 2603997, 4024359, 4339995, 4918661, 6707265, 7632405, 13019985, 14755983, 20121795, 24593305, 44267949, 73779915, 221339745]

約数ペア:

[(1, 221339745), (3, 73779915), (5, 44267949), (9, 24593305), (11, 20121795), (15, 14755983), (17, 13019985), (29, 7632405), (33, 6707265), (45, 4918661), (51, 4339995), (55, 4024359), (85, 2603997), (87, 2544135), (99, 2235755), (145, 1526481), (153, 1446665), (165, 1341453), (187, 1183635), (255, 867999), (261, 848045), (319, 693855), (435, 508827), (493, 448965), (495, 447151), (561, 394545), (765, 289333), (907, 244035), (935, 236727), (957, 231285), (1305, 169609), (1479, 149655), (1595, 138771), (1683, 131515), (2465, 89793), (2721, 81345), (2805, 78909), (2871, 77095), (4437, 49885), (4535, 48807), (4785, 46257), (5423, 40815), (7395, 29931), (8163, 27115), (8415, 26303), (9977, 22185), (13605, 16269), (14355, 15419)]