21167685

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 47174400

約数和(自身を除く): 26006715

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 41, 45, 55, 63, 77, 99, 105, 123, 149, 165, 205, 231, 287, 315, 369, 385, 447, 451, 495, 615, 693, 745, 861, 1043, 1155, 1341, 1353, 1435, 1639, 1845, 2235, 2255, 2583, 3129, 3157, 3465, 4059, 4305, 4917, 5215, 6109, 6705, 6765, 8195, 9387, 9471, 11473, 12915, 14751, 15645, 15785, 18327, 20295, 24585, 28413, 30545, 34419, 42763, 46935, 47355, 54981, 57365, 67199, 73755, 91635, 103257, 128289, 142065, 172095, 201597, 213815, 274905, 335995, 384867, 470393, 516285, 604791, 641445, 1007985, 1411179, 1924335, 2351965, 3023955, 4233537, 7055895, 21167685]

約数ペア:

[(1, 21167685), (3, 7055895), (5, 4233537), (7, 3023955), (9, 2351965), (11, 1924335), (15, 1411179), (21, 1007985), (33, 641445), (35, 604791), (41, 516285), (45, 470393), (55, 384867), (63, 335995), (77, 274905), (99, 213815), (105, 201597), (123, 172095), (149, 142065), (165, 128289), (205, 103257), (231, 91635), (287, 73755), (315, 67199), (369, 57365), (385, 54981), (447, 47355), (451, 46935), (495, 42763), (615, 34419), (693, 30545), (745, 28413), (861, 24585), (1043, 20295), (1155, 18327), (1341, 15785), (1353, 15645), (1435, 14751), (1639, 12915), (1845, 11473), (2235, 9471), (2255, 9387), (2583, 8195), (3129, 6765), (3157, 6705), (3465, 6109), (4059, 5215), (4305, 4917)]