21493397289

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11247199}}^1$

素因数の和:11247229

約数の個数: 24

約数和(自身を含む): 35901062400

約数和(自身を除く): 14407665111

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11247199, 33741597, 78730393, 146213587, 236191179, 438640761, 551112751, 1023495109, 1653338253, 3070485327, 7164465763, 21493397289]

約数ペア:

[(1, 21493397289), (3, 7164465763), (7, 3070485327), (13, 1653338253), (21, 1023495109), (39, 551112751), (49, 438640761), (91, 236191179), (147, 146213587), (273, 78730393), (637, 33741597), (1911, 11247199)]