21503222

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{563}}^1$

素因数の和:704

約数の個数: 24

約数和(自身を含む): 35298504

約数和(自身を除く): 13795282

約数列:

[1, 2, 13, 26, 113, 169, 226, 338, 563, 1126, 1469, 2938, 7319, 14638, 19097, 38194, 63619, 95147, 127238, 190294, 827047, 1654094, 10751611, 21503222]

約数ペア:

[(1, 21503222), (2, 10751611), (13, 1654094), (26, 827047), (113, 190294), (169, 127238), (226, 95147), (338, 63619), (563, 38194), (1126, 19097), (1469, 14638), (2938, 7319)]