21478028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37549}}^1$

素因数の和:37577

約数の個数: 24

約数和(自身を含む): 44158800

約数和(自身を除く): 22680772

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 37549, 75098, 150196, 413039, 488137, 826078, 976274, 1652156, 1952548, 5369507, 10739014, 21478028]

約数ペア:

[(1, 21478028), (2, 10739014), (4, 5369507), (11, 1952548), (13, 1652156), (22, 976274), (26, 826078), (44, 488137), (52, 413039), (143, 150196), (286, 75098), (572, 37549)]