21969028

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{503}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 17403452

約数列:

[1, 2, 4, 61, 122, 179, 244, 358, 503, 716, 1006, 2012, 10919, 21838, 30683, 43676, 61366, 90037, 122732, 180074, 360148, 5492257, 10984514, 21969028]

約数ペア:

[(1, 21969028), (2, 10984514), (4, 5492257), (61, 360148), (122, 180074), (179, 122732), (244, 90037), (358, 61366), (503, 43676), (716, 30683), (1006, 21838), (2012, 10919)]