19979776

素因数分解:

$2^9\times {\mathrm{39023}}^1$

素因数の和:39041

約数の個数: 20

約数和(自身を含む): 39921552

約数和(自身を除く): 19941776

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 39023, 78046, 156092, 312184, 624368, 1248736, 2497472, 4994944, 9989888, 19979776]

約数ペア:

[(1, 19979776), (2, 9989888), (4, 4994944), (8, 2497472), (16, 1248736), (32, 624368), (64, 312184), (128, 156092), (256, 78046), (512, 39023)]