209900079

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{38677}}^1$

素因数の和:38756

約数の個数: 20

約数和(自身を含む): 318242584

約数和(自身を除く): 108342505

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 38677, 116031, 348093, 1044279, 2591359, 3132837, 7774077, 23322231, 69966693, 209900079]

約数ペア:

[(1, 209900079), (3, 69966693), (9, 23322231), (27, 7774077), (67, 3132837), (81, 2591359), (201, 1044279), (603, 348093), (1809, 116031), (5427, 38677)]