21440862

素因数分解:

$2^1\times 3^5\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:455

約数の個数: 48

約数和(自身を含む): 48655152

約数和(自身を除く): 27214290

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 157, 162, 243, 281, 314, 471, 486, 562, 843, 942, 1413, 1686, 2529, 2826, 4239, 5058, 7587, 8478, 12717, 15174, 22761, 25434, 38151, 44117, 45522, 68283, 76302, 88234, 132351, 136566, 264702, 397053, 794106, 1191159, 2382318, 3573477, 7146954, 10720431, 21440862]

約数ペア:

[(1, 21440862), (2, 10720431), (3, 7146954), (6, 3573477), (9, 2382318), (18, 1191159), (27, 794106), (54, 397053), (81, 264702), (157, 136566), (162, 132351), (243, 88234), (281, 76302), (314, 68283), (471, 45522), (486, 44117), (562, 38151), (843, 25434), (942, 22761), (1413, 15174), (1686, 12717), (2529, 8478), (2826, 7587), (4239, 5058)]