21432716

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{5167}}^1$

素因数の和:5249

約数の個数: 24

約数和(自身を含む): 40372416

約数和(自身を除く): 18939700

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 5167, 10334, 20668, 87839, 175678, 315187, 351356, 630374, 1260748, 5358179, 10716358, 21432716]

約数ペア:

[(1, 21432716), (2, 10716358), (4, 5358179), (17, 1260748), (34, 630374), (61, 351356), (68, 315187), (122, 175678), (244, 87839), (1037, 20668), (2074, 10334), (4148, 5167)]