70721640189

素因数分解:

$3^4\times {\mathrm{2161}}^1\times {\mathrm{404029}}^1$

素因数の和:406202

約数の個数: 20

約数和(自身を含む): 105695056060

約数和(自身を除く): 34973415871

約数列:

[1, 3, 9, 27, 81, 2161, 6483, 19449, 58347, 175041, 404029, 1212087, 3636261, 10908783, 32726349, 873106669, 2619320007, 7857960021, 23573880063, 70721640189]

約数ペア:

[(1, 70721640189), (3, 23573880063), (9, 7857960021), (27, 2619320007), (81, 873106669), (2161, 32726349), (6483, 10908783), (19449, 3636261), (58347, 1212087), (175041, 404029)]