18138813

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 15038787

約数列:

[1, 3, 7, 11, 17, 21, 31, 33, 51, 77, 93, 119, 149, 187, 217, 231, 341, 357, 447, 527, 561, 651, 1023, 1043, 1309, 1581, 1639, 2387, 2533, 3129, 3689, 3927, 4619, 4917, 5797, 7161, 7599, 11067, 11473, 13857, 17391, 17731, 27863, 32333, 34419, 40579, 50809, 53193, 78523, 83589, 96999, 121737, 152427, 195041, 235569, 355663, 549661, 585123, 863753, 1066989, 1648983, 2591259, 6046271, 18138813]

約数ペア:

[(1, 18138813), (3, 6046271), (7, 2591259), (11, 1648983), (17, 1066989), (21, 863753), (31, 585123), (33, 549661), (51, 355663), (77, 235569), (93, 195041), (119, 152427), (149, 121737), (187, 96999), (217, 83589), (231, 78523), (341, 53193), (357, 50809), (447, 40579), (527, 34419), (561, 32333), (651, 27863), (1023, 17731), (1043, 17391), (1309, 13857), (1581, 11473), (1639, 11067), (2387, 7599), (2533, 7161), (3129, 5797), (3689, 4917), (3927, 4619)]