21010388

素因数分解:

$2^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1741}}^1$

素因数の和:2183

約数の個数: 24

約数和(自身を含む): 42142464

約数和(自身を除く): 21132076

約数列:

[1, 2, 4, 7, 14, 28, 431, 862, 1724, 1741, 3017, 3482, 6034, 6964, 12068, 12187, 24374, 48748, 750371, 1500742, 3001484, 5252597, 10505194, 21010388]

約数ペア:

[(1, 21010388), (2, 10505194), (4, 5252597), (7, 3001484), (14, 1500742), (28, 750371), (431, 48748), (862, 24374), (1724, 12187), (1741, 12068), (3017, 6964), (3482, 6034)]