20943664

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2791}}^1$

素因数の和:2873

約数の個数: 40

約数和(自身を含む): 47084288

約数和(自身を除く): 26140624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 112, 134, 268, 469, 536, 938, 1072, 1876, 2791, 3752, 5582, 7504, 11164, 19537, 22328, 39074, 44656, 78148, 156296, 186997, 312592, 373994, 747988, 1308979, 1495976, 2617958, 2991952, 5235916, 10471832, 20943664]

約数ペア:

[(1, 20943664), (2, 10471832), (4, 5235916), (7, 2991952), (8, 2617958), (14, 1495976), (16, 1308979), (28, 747988), (56, 373994), (67, 312592), (112, 186997), (134, 156296), (268, 78148), (469, 44656), (536, 39074), (938, 22328), (1072, 19537), (1876, 11164), (2791, 7504), (3752, 5582)]