899999919

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{769}}^1\times {\mathrm{1429}}^1$

素因数の和:2224

約数の個数: 48

約数和(自身を含む): 1603201600

約数和(自身を除く): 703201681

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 769, 819, 1429, 2307, 4287, 5383, 6921, 9997, 10003, 12861, 16149, 18577, 29991, 30009, 48447, 55731, 69979, 89973, 90027, 130039, 167193, 209937, 390117, 629811, 1098901, 1170351, 3296703, 7692307, 9890109, 14285713, 23076921, 42857139, 69230763, 99999991, 128571417, 299999973, 899999919]

約数ペア:

[(1, 899999919), (3, 299999973), (7, 128571417), (9, 99999991), (13, 69230763), (21, 42857139), (39, 23076921), (63, 14285713), (91, 9890109), (117, 7692307), (273, 3296703), (769, 1170351), (819, 1098901), (1429, 629811), (2307, 390117), (4287, 209937), (5383, 167193), (6921, 130039), (9997, 90027), (10003, 89973), (12861, 69979), (16149, 55731), (18577, 48447), (29991, 30009)]