21903872

素因数分解:

$2^9\times {\mathrm{179}}^1\times {\mathrm{239}}^1$

素因数の和:436

約数の個数: 40

約数和(自身を含む): 44193600

約数和(自身を除く): 22289728

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 179, 239, 256, 358, 478, 512, 716, 956, 1432, 1912, 2864, 3824, 5728, 7648, 11456, 15296, 22912, 30592, 42781, 45824, 61184, 85562, 91648, 122368, 171124, 342248, 684496, 1368992, 2737984, 5475968, 10951936, 21903872]

約数ペア:

[(1, 21903872), (2, 10951936), (4, 5475968), (8, 2737984), (16, 1368992), (32, 684496), (64, 342248), (128, 171124), (179, 122368), (239, 91648), (256, 85562), (358, 61184), (478, 45824), (512, 42781), (716, 30592), (956, 22912), (1432, 15296), (1912, 11456), (2864, 7648), (3824, 5728)]