21152418

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71947}}^1$

素因数の和:71966

約数の個数: 24

約数和(自身を含む): 49212432

約数和(自身を除く): 28060014

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 71947, 143894, 215841, 431682, 503629, 1007258, 1510887, 3021774, 3525403, 7050806, 10576209, 21152418]

約数ペア:

[(1, 21152418), (2, 10576209), (3, 7050806), (6, 3525403), (7, 3021774), (14, 1510887), (21, 1007258), (42, 503629), (49, 431682), (98, 215841), (147, 143894), (294, 71947)]