64981197

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{42223}}^1$

素因数の和:42254

約数の個数: 20

約数和(自身を含む): 102182080

約数和(自身を除く): 37200883

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 42223, 126669, 380007, 802237, 1140021, 2406711, 3420063, 7220133, 21660399, 64981197]

約数ペア:

[(1, 64981197), (3, 21660399), (9, 7220133), (19, 3420063), (27, 2406711), (57, 1140021), (81, 802237), (171, 380007), (513, 126669), (1539, 42223)]