18959872

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1986

約数の個数: 40

約数和(自身を含む): 39897000

約数和(自身を除く): 20937128

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1216, 1949, 2432, 3898, 4864, 7796, 9728, 15592, 31184, 37031, 62368, 74062, 124736, 148124, 249472, 296248, 498944, 592496, 997888, 1184992, 2369984, 4739968, 9479936, 18959872]

約数ペア:

[(1, 18959872), (2, 9479936), (4, 4739968), (8, 2369984), (16, 1184992), (19, 997888), (32, 592496), (38, 498944), (64, 296248), (76, 249472), (128, 148124), (152, 124736), (256, 74062), (304, 62368), (512, 37031), (608, 31184), (1216, 15592), (1949, 9728), (2432, 7796), (3898, 4864)]