21041246

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:384

約数の個数: 24

約数和(自身を含む): 33704784

約数和(自身を除く): 12663538

約数列:

[1, 2, 19, 38, 151, 193, 302, 361, 386, 722, 2869, 3667, 5738, 7334, 29143, 54511, 58286, 69673, 109022, 139346, 553717, 1107434, 10520623, 21041246]

約数ペア:

[(1, 21041246), (2, 10520623), (19, 1107434), (38, 553717), (151, 139346), (193, 109022), (302, 69673), (361, 58286), (386, 54511), (722, 29143), (2869, 7334), (3667, 5738)]