19758879

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{971}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 36391680

約数和(自身を除く): 16632801

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 971, 1071, 1197, 2261, 2907, 2913, 6783, 6797, 8739, 16507, 18449, 20349, 20391, 49521, 55347, 61173, 115549, 129143, 148563, 166041, 313633, 346647, 387429, 940899, 1039941, 1162287, 2195431, 2822697, 6586293, 19758879]

約数ペア:

[(1, 19758879), (3, 6586293), (7, 2822697), (9, 2195431), (17, 1162287), (19, 1039941), (21, 940899), (51, 387429), (57, 346647), (63, 313633), (119, 166041), (133, 148563), (153, 129143), (171, 115549), (323, 61173), (357, 55347), (399, 49521), (969, 20391), (971, 20349), (1071, 18449), (1197, 16507), (2261, 8739), (2907, 6797), (2913, 6783)]