21479032

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{337}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 41857920

約数和(自身を除く): 20378888

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 257, 337, 514, 674, 1028, 1348, 2056, 2696, 7967, 10447, 15934, 20894, 31868, 41788, 63736, 83576, 86609, 173218, 346436, 692872, 2684879, 5369758, 10739516, 21479032]

約数ペア:

[(1, 21479032), (2, 10739516), (4, 5369758), (8, 2684879), (31, 692872), (62, 346436), (124, 173218), (248, 86609), (257, 83576), (337, 63736), (514, 41788), (674, 31868), (1028, 20894), (1348, 15934), (2056, 10447), (2696, 7967)]