18578637

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 37739520

約数和(自身を除く): 19160883

約数列:

[1, 3, 7, 9, 11, 17, 19, 21, 33, 51, 57, 63, 77, 83, 99, 119, 133, 153, 171, 187, 209, 231, 249, 323, 357, 399, 561, 581, 627, 693, 747, 913, 969, 1071, 1197, 1309, 1411, 1463, 1577, 1683, 1743, 1881, 2261, 2739, 2907, 3553, 3927, 4233, 4389, 4731, 5229, 6391, 6783, 8217, 9877, 10659, 11039, 11781, 12699, 13167, 14193, 15521, 17347, 19173, 20349, 24871, 26809, 29631, 31977, 33117, 46563, 52041, 57519, 74613, 80427, 88893, 99351, 108647, 121429, 139689, 156123, 187663, 223839, 241281, 294899, 325941, 364287, 562989, 884697, 977823, 1092861, 1688967, 2064293, 2654091, 6192879, 18578637]

約数ペア:

[(1, 18578637), (3, 6192879), (7, 2654091), (9, 2064293), (11, 1688967), (17, 1092861), (19, 977823), (21, 884697), (33, 562989), (51, 364287), (57, 325941), (63, 294899), (77, 241281), (83, 223839), (99, 187663), (119, 156123), (133, 139689), (153, 121429), (171, 108647), (187, 99351), (209, 88893), (231, 80427), (249, 74613), (323, 57519), (357, 52041), (399, 46563), (561, 33117), (581, 31977), (627, 29631), (693, 26809), (747, 24871), (913, 20349), (969, 19173), (1071, 17347), (1197, 15521), (1309, 14193), (1411, 13167), (1463, 12699), (1577, 11781), (1683, 11039), (1743, 10659), (1881, 9877), (2261, 8217), (2739, 6783), (2907, 6391), (3553, 5229), (3927, 4731), (4233, 4389)]