18986781681

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{11689}}^1$

素因数の和:11803

約数の個数: 96

約数和(自身を含む): 35013888000

約数和(自身を除く): 16027106319

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 59, 63, 69, 133, 161, 171, 177, 207, 399, 413, 437, 483, 531, 1121, 1197, 1239, 1311, 1357, 1449, 3059, 3363, 3717, 3933, 4071, 7847, 9177, 9499, 10089, 11689, 12213, 23541, 25783, 27531, 28497, 35067, 70623, 77349, 81823, 85491, 105201, 180481, 222091, 232047, 245469, 268847, 541443, 666273, 689651, 736407, 806541, 1554637, 1624329, 1881929, 1998819, 2068953, 2419623, 4663911, 4827557, 5108093, 5645787, 6206859, 13103369, 13991733, 14482671, 15324279, 15861973, 16937361, 35756651, 39310107, 43448013, 45972837, 47585919, 91723583, 107269953, 111033811, 117930321, 142757757, 275170749, 301377487, 321809859, 333101433, 825512247, 904132461, 999304299, 2109642409, 2712397383, 6328927227, 18986781681]

約数ペア:

[(1, 18986781681), (3, 6328927227), (7, 2712397383), (9, 2109642409), (19, 999304299), (21, 904132461), (23, 825512247), (57, 333101433), (59, 321809859), (63, 301377487), (69, 275170749), (133, 142757757), (161, 117930321), (171, 111033811), (177, 107269953), (207, 91723583), (399, 47585919), (413, 45972837), (437, 43448013), (483, 39310107), (531, 35756651), (1121, 16937361), (1197, 15861973), (1239, 15324279), (1311, 14482671), (1357, 13991733), (1449, 13103369), (3059, 6206859), (3363, 5645787), (3717, 5108093), (3933, 4827557), (4071, 4663911), (7847, 2419623), (9177, 2068953), (9499, 1998819), (10089, 1881929), (11689, 1624329), (12213, 1554637), (23541, 806541), (25783, 736407), (27531, 689651), (28497, 666273), (35067, 541443), (70623, 268847), (77349, 245469), (81823, 232047), (85491, 222091), (105201, 180481)]