21197804528

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{229}}^1\times {\mathrm{109159}}^1$

素因数の和:109449

約数の個数: 40

約数和(自身を含む): 42028783200

約数和(自身を除く): 20830978672

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 229, 424, 458, 848, 916, 1832, 3664, 12137, 24274, 48548, 97096, 109159, 194192, 218318, 436636, 873272, 1746544, 5785427, 11570854, 23141708, 24997411, 46283416, 49994822, 92566832, 99989644, 199979288, 399958576, 1324862783, 2649725566, 5299451132, 10598902264, 21197804528]

約数ペア:

[(1, 21197804528), (2, 10598902264), (4, 5299451132), (8, 2649725566), (16, 1324862783), (53, 399958576), (106, 199979288), (212, 99989644), (229, 92566832), (424, 49994822), (458, 46283416), (848, 24997411), (916, 23141708), (1832, 11570854), (3664, 5785427), (12137, 1746544), (24274, 873272), (48548, 436636), (97096, 218318), (109159, 194192)]