20972448

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 144

約数和(自身を含む): 69503616

約数和(自身を除く): 48531168

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 101, 103, 112, 126, 144, 168, 202, 206, 224, 252, 288, 303, 309, 336, 404, 412, 504, 606, 618, 672, 707, 721, 808, 824, 909, 927, 1008, 1212, 1236, 1414, 1442, 1616, 1648, 1818, 1854, 2016, 2121, 2163, 2424, 2472, 2828, 2884, 3232, 3296, 3636, 3708, 4242, 4326, 4848, 4944, 5656, 5768, 6363, 6489, 7272, 7416, 8484, 8652, 9696, 9888, 10403, 11312, 11536, 12726, 12978, 14544, 14832, 16968, 17304, 20806, 22624, 23072, 25452, 25956, 29088, 29664, 31209, 33936, 34608, 41612, 50904, 51912, 62418, 67872, 69216, 72821, 83224, 93627, 101808, 103824, 124836, 145642, 166448, 187254, 203616, 207648, 218463, 249672, 291284, 332896, 374508, 436926, 499344, 582568, 655389, 749016, 873852, 998688, 1165136, 1310778, 1498032, 1747704, 2330272, 2621556, 2996064, 3495408, 5243112, 6990816, 10486224, 20972448]

約数ペア:

[(1, 20972448), (2, 10486224), (3, 6990816), (4, 5243112), (6, 3495408), (7, 2996064), (8, 2621556), (9, 2330272), (12, 1747704), (14, 1498032), (16, 1310778), (18, 1165136), (21, 998688), (24, 873852), (28, 749016), (32, 655389), (36, 582568), (42, 499344), (48, 436926), (56, 374508), (63, 332896), (72, 291284), (84, 249672), (96, 218463), (101, 207648), (103, 203616), (112, 187254), (126, 166448), (144, 145642), (168, 124836), (202, 103824), (206, 101808), (224, 93627), (252, 83224), (288, 72821), (303, 69216), (309, 67872), (336, 62418), (404, 51912), (412, 50904), (504, 41612), (606, 34608), (618, 33936), (672, 31209), (707, 29664), (721, 29088), (808, 25956), (824, 25452), (909, 23072), (927, 22624), (1008, 20806), (1212, 17304), (1236, 16968), (1414, 14832), (1442, 14544), (1616, 12978), (1648, 12726), (1818, 11536), (1854, 11312), (2016, 10403), (2121, 9888), (2163, 9696), (2424, 8652), (2472, 8484), (2828, 7416), (2884, 7272), (3232, 6489), (3296, 6363), (3636, 5768), (3708, 5656), (4242, 4944), (4326, 4848)]