21499030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{307129}}^1$

素因数の和:307143

約数の個数: 16

約数和(自身を含む): 44226720

約数和(自身を除く): 22727690

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 307129, 614258, 1535645, 2149903, 3071290, 4299806, 10749515, 21499030]

約数ペア:

[(1, 21499030), (2, 10749515), (5, 4299806), (7, 3071290), (10, 2149903), (14, 1535645), (35, 614258), (70, 307129)]