20300553

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3541}}^1$

素因数の和:3574

約数の個数: 36

約数和(自身を含む): 36744708

約数和(自身を除く): 16444155

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 3541, 5733, 10623, 24787, 31869, 46033, 74361, 138099, 173509, 223083, 322231, 414297, 520527, 966693, 1561581, 2255617, 2900079, 6766851, 20300553]

約数ペア:

[(1, 20300553), (3, 6766851), (7, 2900079), (9, 2255617), (13, 1561581), (21, 966693), (39, 520527), (49, 414297), (63, 322231), (91, 223083), (117, 173509), (147, 138099), (273, 74361), (441, 46033), (637, 31869), (819, 24787), (1911, 10623), (3541, 5733)]