21773720

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2441}}^1$

素因数の和:2675

約数の個数: 32

約数和(自身を含む): 49230720

約数和(自身を除く): 27457000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 2441, 4460, 4882, 8920, 9764, 12205, 19528, 24410, 48820, 97640, 544343, 1088686, 2177372, 2721715, 4354744, 5443430, 10886860, 21773720]

約数ペア:

[(1, 21773720), (2, 10886860), (4, 5443430), (5, 4354744), (8, 2721715), (10, 2177372), (20, 1088686), (40, 544343), (223, 97640), (446, 48820), (892, 24410), (1115, 19528), (1784, 12205), (2230, 9764), (2441, 8920), (4460, 4882)]