1639730061

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{302143}}^1$

素因数の和:302222

約数の個数: 20

約数和(自身を含む): 2486040832

約数和(自身を除く): 846310771

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 302143, 906429, 2719287, 8157861, 20243581, 24473583, 60730743, 182192229, 546576687, 1639730061]

約数ペア:

[(1, 1639730061), (3, 546576687), (9, 182192229), (27, 60730743), (67, 24473583), (81, 20243581), (201, 8157861), (603, 2719287), (1809, 906429), (5427, 302143)]