21570230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1249}}^1$

素因数の和:1424

約数の個数: 32

約数和(自身を含む): 42660000

約数和(自身を除く): 21089770

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 157, 314, 785, 1249, 1570, 1727, 2498, 3454, 6245, 8635, 12490, 13739, 17270, 27478, 68695, 137390, 196093, 392186, 980465, 1960930, 2157023, 4314046, 10785115, 21570230]

約数ペア:

[(1, 21570230), (2, 10785115), (5, 4314046), (10, 2157023), (11, 1960930), (22, 980465), (55, 392186), (110, 196093), (157, 137390), (314, 68695), (785, 27478), (1249, 17270), (1570, 13739), (1727, 12490), (2498, 8635), (3454, 6245)]