21082970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2999}}^1$

素因数の和:3062

約数の個数: 32

約数和(自身を含む): 41040000

約数和(自身を除く): 19957030

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 370, 703, 1406, 2999, 3515, 5998, 7030, 14995, 29990, 56981, 110963, 113962, 221926, 284905, 554815, 569810, 1109630, 2108297, 4216594, 10541485, 21082970]

約数ペア:

[(1, 21082970), (2, 10541485), (5, 4216594), (10, 2108297), (19, 1109630), (37, 569810), (38, 554815), (74, 284905), (95, 221926), (185, 113962), (190, 110963), (370, 56981), (703, 29990), (1406, 14995), (2999, 7030), (3515, 5998)]