21020008

素因数分解:

$2^3\times {\mathrm{683}}^1\times {\mathrm{3847}}^1$

素因数の和:4536

約数の個数: 16

約数和(自身を含む): 39480480

約数和(自身を除く): 18460472

約数列:

[1, 2, 4, 8, 683, 1366, 2732, 3847, 5464, 7694, 15388, 30776, 2627501, 5255002, 10510004, 21020008]

約数ペア:

[(1, 21020008), (2, 10510004), (4, 5255002), (8, 2627501), (683, 30776), (1366, 15388), (2732, 7694), (3847, 5464)]