64987353

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{42227}}^1$

素因数の和:42258

約数の個数: 20

約数和(自身を含む): 102191760

約数和(自身を除く): 37204407

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 42227, 126681, 380043, 802313, 1140129, 2406939, 3420387, 7220817, 21662451, 64987353]

約数ペア:

[(1, 64987353), (3, 21662451), (9, 7220817), (19, 3420387), (27, 2406939), (57, 1140129), (81, 802313), (171, 380043), (513, 126681), (1539, 42227)]