20178233901

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{9629}}^1$

素因数の和:9739

約数の個数: 96

約数和(自身を含む): 36535449600

約数和(自身を除く): 16357215699

約数列:

[1, 3, 7, 9, 21, 29, 31, 37, 63, 87, 93, 111, 203, 217, 259, 261, 279, 333, 609, 651, 777, 899, 1073, 1147, 1827, 1953, 2331, 2697, 3219, 3441, 6293, 7511, 8029, 8091, 9629, 9657, 10323, 18879, 22533, 24087, 28887, 33263, 56637, 67403, 67599, 72261, 86661, 99789, 202209, 232841, 279241, 298499, 299367, 356273, 606627, 698523, 837723, 895497, 1068819, 1954687, 2089493, 2095569, 2493911, 2513169, 2686491, 3206457, 5864061, 6268479, 7481733, 8656471, 10331917, 11044463, 17592183, 18805437, 22445199, 25969413, 30995751, 33133389, 60595297, 72323419, 77311241, 77908239, 92987253, 99400167, 181785891, 216970257, 231933723, 320289427, 545357673, 650910771, 695801169, 960868281, 2242025989, 2882604843, 6726077967, 20178233901]

約数ペア:

[(1, 20178233901), (3, 6726077967), (7, 2882604843), (9, 2242025989), (21, 960868281), (29, 695801169), (31, 650910771), (37, 545357673), (63, 320289427), (87, 231933723), (93, 216970257), (111, 181785891), (203, 99400167), (217, 92987253), (259, 77908239), (261, 77311241), (279, 72323419), (333, 60595297), (609, 33133389), (651, 30995751), (777, 25969413), (899, 22445199), (1073, 18805437), (1147, 17592183), (1827, 11044463), (1953, 10331917), (2331, 8656471), (2697, 7481733), (3219, 6268479), (3441, 5864061), (6293, 3206457), (7511, 2686491), (8029, 2513169), (8091, 2493911), (9629, 2095569), (9657, 2089493), (10323, 1954687), (18879, 1068819), (22533, 895497), (24087, 837723), (28887, 698523), (33263, 606627), (56637, 356273), (67403, 299367), (67599, 298499), (72261, 279241), (86661, 232841), (99789, 202209)]