21002992

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12043}}^1$

素因数の和:12160

約数の個数: 20

約数和(自身を含む): 41070040

約数和(自身を除く): 20067048

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12043, 24086, 48172, 96344, 192688, 1312687, 2625374, 5250748, 10501496, 21002992]

約数ペア:

[(1, 21002992), (2, 10501496), (4, 5250748), (8, 2625374), (16, 1312687), (109, 192688), (218, 96344), (436, 48172), (872, 24086), (1744, 12043)]