21338744

素因数分解:

$2^3\times 7^1\times {\mathrm{463}}^1\times {\mathrm{823}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 45880320

約数和(自身を除く): 24541576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 463, 823, 926, 1646, 1852, 3241, 3292, 3704, 5761, 6482, 6584, 11522, 12964, 23044, 25928, 46088, 381049, 762098, 1524196, 2667343, 3048392, 5334686, 10669372, 21338744]

約数ペア:

[(1, 21338744), (2, 10669372), (4, 5334686), (7, 3048392), (8, 2667343), (14, 1524196), (28, 762098), (56, 381049), (463, 46088), (823, 25928), (926, 23044), (1646, 12964), (1852, 11522), (3241, 6584), (3292, 6482), (3704, 5761)]