20939072

素因数分解:

$2^6\times 7^2\times {\mathrm{11}}^1\times {\mathrm{607}}^1$

素因数の和:644

約数の個数: 84

約数和(自身を含む): 52815744

約数和(自身を除く): 31876672

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 88, 98, 112, 154, 176, 196, 224, 308, 352, 392, 448, 539, 607, 616, 704, 784, 1078, 1214, 1232, 1568, 2156, 2428, 2464, 3136, 4249, 4312, 4856, 4928, 6677, 8498, 8624, 9712, 13354, 16996, 17248, 19424, 26708, 29743, 33992, 34496, 38848, 46739, 53416, 59486, 67984, 93478, 106832, 118972, 135968, 186956, 213664, 237944, 271936, 327173, 373912, 427328, 475888, 654346, 747824, 951776, 1308692, 1495648, 1903552, 2617384, 2991296, 5234768, 10469536, 20939072]

約数ペア:

[(1, 20939072), (2, 10469536), (4, 5234768), (7, 2991296), (8, 2617384), (11, 1903552), (14, 1495648), (16, 1308692), (22, 951776), (28, 747824), (32, 654346), (44, 475888), (49, 427328), (56, 373912), (64, 327173), (77, 271936), (88, 237944), (98, 213664), (112, 186956), (154, 135968), (176, 118972), (196, 106832), (224, 93478), (308, 67984), (352, 59486), (392, 53416), (448, 46739), (539, 38848), (607, 34496), (616, 33992), (704, 29743), (784, 26708), (1078, 19424), (1214, 17248), (1232, 16996), (1568, 13354), (2156, 9712), (2428, 8624), (2464, 8498), (3136, 6677), (4249, 4928), (4312, 4856)]