215497989

素因数分解:

$3^5\times 7^1\times {\mathrm{151}}^1\times {\mathrm{839}}^1$

素因数の和:1012

約数の個数: 48

約数和(自身を含む): 371804160

約数和(自身を除く): 156306171

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 151, 189, 243, 453, 567, 839, 1057, 1359, 1701, 2517, 3171, 4077, 5873, 7551, 9513, 12231, 17619, 22653, 28539, 36693, 52857, 67959, 85617, 126689, 158571, 203877, 256851, 380067, 475713, 886823, 1140201, 1427139, 2660469, 3420603, 7981407, 10261809, 23944221, 30785427, 71832663, 215497989]

約数ペア:

[(1, 215497989), (3, 71832663), (7, 30785427), (9, 23944221), (21, 10261809), (27, 7981407), (63, 3420603), (81, 2660469), (151, 1427139), (189, 1140201), (243, 886823), (453, 475713), (567, 380067), (839, 256851), (1057, 203877), (1359, 158571), (1701, 126689), (2517, 85617), (3171, 67959), (4077, 52857), (5873, 36693), (7551, 28539), (9513, 22653), (12231, 17619)]