19813888

素因数分解:

$2^9\times {\mathrm{38699}}^1$

素因数の和:38717

約数の個数: 20

約数和(自身を含む): 39590100

約数和(自身を除く): 19776212

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 38699, 77398, 154796, 309592, 619184, 1238368, 2476736, 4953472, 9906944, 19813888]

約数ペア:

[(1, 19813888), (2, 9906944), (4, 4953472), (8, 2476736), (16, 1238368), (32, 619184), (64, 309592), (128, 154796), (256, 77398), (512, 38699)]