18779648

素因数分解:

$2^9\times {\mathrm{43}}^1\times {\mathrm{853}}^1$

素因数の和:914

約数の個数: 40

約数和(自身を含む): 38440248

約数和(自身を除く): 19660600

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 512, 688, 853, 1376, 1706, 2752, 3412, 5504, 6824, 11008, 13648, 22016, 27296, 36679, 54592, 73358, 109184, 146716, 218368, 293432, 436736, 586864, 1173728, 2347456, 4694912, 9389824, 18779648]

約数ペア:

[(1, 18779648), (2, 9389824), (4, 4694912), (8, 2347456), (16, 1173728), (32, 586864), (43, 436736), (64, 293432), (86, 218368), (128, 146716), (172, 109184), (256, 73358), (344, 54592), (512, 36679), (688, 27296), (853, 22016), (1376, 13648), (1706, 11008), (2752, 6824), (3412, 5504)]