21875061

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 33747840

約数和(自身を除く): 11872779

約数列:

[1, 3, 13, 19, 39, 53, 57, 159, 247, 557, 689, 741, 1007, 1671, 2067, 3021, 7241, 10583, 13091, 21723, 29521, 31749, 39273, 88563, 137579, 383773, 412737, 560899, 1151319, 1682697, 7291687, 21875061]

約数ペア:

[(1, 21875061), (3, 7291687), (13, 1682697), (19, 1151319), (39, 560899), (53, 412737), (57, 383773), (159, 137579), (247, 88563), (557, 39273), (689, 31749), (741, 29521), (1007, 21723), (1671, 13091), (2067, 10583), (3021, 7241)]