21519138

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 44354304

約数和(自身を除く): 22835166

約数列:

[1, 2, 3, 6, 47, 94, 137, 141, 274, 282, 411, 557, 822, 1114, 1671, 3342, 6439, 12878, 19317, 26179, 38634, 52358, 76309, 78537, 152618, 157074, 228927, 457854, 3586523, 7173046, 10759569, 21519138]

約数ペア:

[(1, 21519138), (2, 10759569), (3, 7173046), (6, 3586523), (47, 457854), (94, 228927), (137, 157074), (141, 152618), (274, 78537), (282, 76309), (411, 52358), (557, 38634), (822, 26179), (1114, 19317), (1671, 12878), (3342, 6439)]