21764548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{6247}}^1$

素因数の和:6331

約数の個数: 24

約数和(自身を含む): 41636672

約数和(自身を除く): 19872124

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 6247, 12494, 24988, 81211, 162422, 324844, 418549, 837098, 1674196, 5441137, 10882274, 21764548]

約数ペア:

[(1, 21764548), (2, 10882274), (4, 5441137), (13, 1674196), (26, 837098), (52, 418549), (67, 324844), (134, 162422), (268, 81211), (871, 24988), (1742, 12494), (3484, 6247)]