19498772

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 34971720

約数和(自身を除く): 15472948

約数列:

[1, 2, 4, 61, 122, 157, 244, 314, 509, 628, 1018, 2036, 9577, 19154, 31049, 38308, 62098, 79913, 124196, 159826, 319652, 4874693, 9749386, 19498772]

約数ペア:

[(1, 19498772), (2, 9749386), (4, 4874693), (61, 319652), (122, 159826), (157, 124196), (244, 79913), (314, 62098), (509, 38308), (628, 31049), (1018, 19154), (2036, 9577)]