638394927

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 931956480

約数和(自身を除く): 293561553

約数列:

[1, 3, 19, 57, 59, 97, 103, 177, 291, 309, 361, 1083, 1121, 1843, 1957, 3363, 5529, 5723, 5871, 6077, 9991, 17169, 18231, 21299, 29973, 35017, 37183, 63897, 105051, 108737, 111549, 115463, 189829, 326211, 346389, 569487, 589469, 1768407, 2066003, 2193797, 3606751, 6198009, 6581391, 10820253, 11199911, 33599733, 212798309, 638394927]

約数ペア:

[(1, 638394927), (3, 212798309), (19, 33599733), (57, 11199911), (59, 10820253), (97, 6581391), (103, 6198009), (177, 3606751), (291, 2193797), (309, 2066003), (361, 1768407), (1083, 589469), (1121, 569487), (1843, 346389), (1957, 326211), (3363, 189829), (5529, 115463), (5723, 111549), (5871, 108737), (6077, 105051), (9991, 63897), (17169, 37183), (18231, 35017), (21299, 29973)]