20844688

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{523}}^1$

素因数の和:631

約数の個数: 40

約数和(自身を含む): 42104448

約数和(自身を除く): 21259760

約数列:

[1, 2, 4, 8, 16, 47, 53, 94, 106, 188, 212, 376, 424, 523, 752, 848, 1046, 2092, 2491, 4184, 4982, 8368, 9964, 19928, 24581, 27719, 39856, 49162, 55438, 98324, 110876, 196648, 221752, 393296, 443504, 1302793, 2605586, 5211172, 10422344, 20844688]

約数ペア:

[(1, 20844688), (2, 10422344), (4, 5211172), (8, 2605586), (16, 1302793), (47, 443504), (53, 393296), (94, 221752), (106, 196648), (188, 110876), (212, 98324), (376, 55438), (424, 49162), (523, 39856), (752, 27719), (848, 24581), (1046, 19928), (2092, 9964), (2491, 8368), (4184, 4982)]