21000406

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{88237}}^1$

素因数の和:88263

約数の個数: 16

約数和(自身を含む): 38118816

約数和(自身を除く): 17118410

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 88237, 176474, 617659, 1235318, 1500029, 3000058, 10500203, 21000406]

約数ペア:

[(1, 21000406), (2, 10500203), (7, 3000058), (14, 1500029), (17, 1235318), (34, 617659), (119, 176474), (238, 88237)]