19854428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{853}}^1$

素因数の和:914

約数の個数: 36

約数和(自身を含む): 39670008

約数和(自身を除く): 19815580

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 529, 853, 1012, 1058, 1706, 2116, 3412, 5819, 9383, 11638, 18766, 19619, 23276, 37532, 39238, 78476, 215809, 431618, 451237, 863236, 902474, 1804948, 4963607, 9927214, 19854428]

約数ペア:

[(1, 19854428), (2, 9927214), (4, 4963607), (11, 1804948), (22, 902474), (23, 863236), (44, 451237), (46, 431618), (92, 215809), (253, 78476), (506, 39238), (529, 37532), (853, 23276), (1012, 19619), (1058, 18766), (1706, 11638), (2116, 9383), (3412, 5819)]