21967504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105613}}^1$

素因数の和:105634

約数の個数: 20

約数和(自身を含む): 45836476

約数和(自身を除く): 23868972

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105613, 211226, 422452, 844904, 1372969, 1689808, 2745938, 5491876, 10983752, 21967504]

約数ペア:

[(1, 21967504), (2, 10983752), (4, 5491876), (8, 2745938), (13, 1689808), (16, 1372969), (26, 844904), (52, 422452), (104, 211226), (208, 105613)]