21914864

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{601}}^1$

素因数の和:705

約数の個数: 40

約数和(自身を含む): 44340912

約数和(自身を除く): 22426048

約数列:

[1, 2, 4, 8, 16, 43, 53, 86, 106, 172, 212, 344, 424, 601, 688, 848, 1202, 2279, 2404, 4558, 4808, 9116, 9616, 18232, 25843, 31853, 36464, 51686, 63706, 103372, 127412, 206744, 254824, 413488, 509648, 1369679, 2739358, 5478716, 10957432, 21914864]

約数ペア:

[(1, 21914864), (2, 10957432), (4, 5478716), (8, 2739358), (16, 1369679), (43, 509648), (53, 413488), (86, 254824), (106, 206744), (172, 127412), (212, 103372), (344, 63706), (424, 51686), (601, 36464), (688, 31853), (848, 25843), (1202, 18232), (2279, 9616), (2404, 9116), (4558, 4808)]