28170933

素因数分解:

$3^1\times 7^4\times {\mathrm{3911}}^1$

素因数の和:3942

約数の個数: 20

約数和(自身を含む): 43830048

約数和(自身を除く): 15659115

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 3911, 7203, 11733, 27377, 82131, 191639, 574917, 1341473, 4024419, 9390311, 28170933]

約数ペア:

[(1, 28170933), (3, 9390311), (7, 4024419), (21, 1341473), (49, 574917), (147, 191639), (343, 82131), (1029, 27377), (2401, 11733), (3911, 7203)]