18422747

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 23887872

約数和(自身を除く): 5465125

約数列:

[1, 7, 17, 23, 53, 119, 127, 161, 371, 391, 889, 901, 1219, 2159, 2737, 2921, 6307, 6731, 8533, 15113, 20447, 20723, 47117, 49657, 114427, 145061, 154813, 347599, 800989, 1083691, 2631821, 18422747]

約数ペア:

[(1, 18422747), (7, 2631821), (17, 1083691), (23, 800989), (53, 347599), (119, 154813), (127, 145061), (161, 114427), (371, 49657), (391, 47117), (889, 20723), (901, 20447), (1219, 15113), (2159, 8533), (2737, 6731), (2921, 6307)]