21827428

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 24742172

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 89, 133, 178, 266, 356, 461, 532, 623, 922, 1246, 1691, 1844, 2492, 3227, 3382, 6454, 6764, 8759, 11837, 12908, 17518, 23674, 35036, 41029, 47348, 61313, 82058, 122626, 164116, 245252, 287203, 574406, 779551, 1148812, 1559102, 3118204, 5456857, 10913714, 21827428]

約数ペア:

[(1, 21827428), (2, 10913714), (4, 5456857), (7, 3118204), (14, 1559102), (19, 1148812), (28, 779551), (38, 574406), (76, 287203), (89, 245252), (133, 164116), (178, 122626), (266, 82058), (356, 61313), (461, 47348), (532, 41029), (623, 35036), (922, 23674), (1246, 17518), (1691, 12908), (1844, 11837), (2492, 8759), (3227, 6764), (3382, 6454)]