21386628

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31267}}^1$

素因数の和:31296

約数の個数: 36

約数和(自身を含む): 56907760

約数和(自身を除く): 35521132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 31267, 62534, 93801, 125068, 187602, 281403, 375204, 562806, 594073, 1125612, 1188146, 1782219, 2376292, 3564438, 5346657, 7128876, 10693314, 21386628]

約数ペア:

[(1, 21386628), (2, 10693314), (3, 7128876), (4, 5346657), (6, 3564438), (9, 2376292), (12, 1782219), (18, 1188146), (19, 1125612), (36, 594073), (38, 562806), (57, 375204), (76, 281403), (114, 187602), (171, 125068), (228, 93801), (342, 62534), (684, 31267)]