19561633

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:182

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 5839967

約数列:

[1, 7, 13, 41, 49, 91, 107, 287, 343, 533, 637, 749, 1391, 2009, 3731, 4387, 4459, 5243, 9737, 14063, 26117, 30709, 36701, 57031, 68159, 182819, 214963, 399217, 477113, 1504741, 2794519, 19561633]

約数ペア:

[(1, 19561633), (7, 2794519), (13, 1504741), (41, 477113), (49, 399217), (91, 214963), (107, 182819), (287, 68159), (343, 57031), (533, 36701), (637, 30709), (749, 26117), (1391, 14063), (2009, 9737), (3731, 5243), (4387, 4459)]