21464896

素因数分解:

$2^6\times {\mathrm{31}}^2\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 42

約数和(自身を含む): 44138850

約数和(自身を除く): 22673954

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 349, 496, 698, 961, 992, 1396, 1922, 1984, 2792, 3844, 5584, 7688, 10819, 11168, 15376, 21638, 22336, 30752, 43276, 61504, 86552, 173104, 335389, 346208, 670778, 692416, 1341556, 2683112, 5366224, 10732448, 21464896]

約数ペア:

[(1, 21464896), (2, 10732448), (4, 5366224), (8, 2683112), (16, 1341556), (31, 692416), (32, 670778), (62, 346208), (64, 335389), (124, 173104), (248, 86552), (349, 61504), (496, 43276), (698, 30752), (961, 22336), (992, 21638), (1396, 15376), (1922, 11168), (1984, 10819), (2792, 7688), (3844, 5584)]