21248896

素因数分解:

$2^7\times {\mathrm{109}}^1\times {\mathrm{1523}}^1$

素因数の和:1646

約数の個数: 32

約数和(自身を含む): 42748200

約数和(自身を除く): 21499304

約数列:

[1, 2, 4, 8, 16, 32, 64, 109, 128, 218, 436, 872, 1523, 1744, 3046, 3488, 6092, 6976, 12184, 13952, 24368, 48736, 97472, 166007, 194944, 332014, 664028, 1328056, 2656112, 5312224, 10624448, 21248896]

約数ペア:

[(1, 21248896), (2, 10624448), (4, 5312224), (8, 2656112), (16, 1328056), (32, 664028), (64, 332014), (109, 194944), (128, 166007), (218, 97472), (436, 48736), (872, 24368), (1523, 13952), (1744, 12184), (3046, 6976), (3488, 6092)]