21731696

素因数分解:

$2^4\times 7^2\times {\mathrm{53}}^1\times {\mathrm{523}}^1$

素因数の和:598

約数の個数: 60

約数和(自身を含む): 49999032

約数和(自身を除く): 28267336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 53, 56, 98, 106, 112, 196, 212, 371, 392, 424, 523, 742, 784, 848, 1046, 1484, 2092, 2597, 2968, 3661, 4184, 5194, 5936, 7322, 8368, 10388, 14644, 20776, 25627, 27719, 29288, 41552, 51254, 55438, 58576, 102508, 110876, 194033, 205016, 221752, 388066, 410032, 443504, 776132, 1358231, 1552264, 2716462, 3104528, 5432924, 10865848, 21731696]

約数ペア:

[(1, 21731696), (2, 10865848), (4, 5432924), (7, 3104528), (8, 2716462), (14, 1552264), (16, 1358231), (28, 776132), (49, 443504), (53, 410032), (56, 388066), (98, 221752), (106, 205016), (112, 194033), (196, 110876), (212, 102508), (371, 58576), (392, 55438), (424, 51254), (523, 41552), (742, 29288), (784, 27719), (848, 25627), (1046, 20776), (1484, 14644), (2092, 10388), (2597, 8368), (2968, 7322), (3661, 5936), (4184, 5194)]