18985984

素因数分解:

$2^{10}\times {\mathrm{18541}}^1$

素因数の和:18561

約数の個数: 22

約数和(自身を含む): 37955474

約数和(自身を除く): 18969490

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 18541, 37082, 74164, 148328, 296656, 593312, 1186624, 2373248, 4746496, 9492992, 18985984]

約数ペア:

[(1, 18985984), (2, 9492992), (4, 4746496), (8, 2373248), (16, 1186624), (32, 593312), (64, 296656), (128, 148328), (256, 74164), (512, 37082), (1024, 18541)]