19192779

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:244

約数の個数: 36

約数和(自身を含む): 30267744

約数和(自身を除く): 11074965

約数列:

[1, 3, 9, 17, 47, 51, 141, 153, 157, 289, 423, 471, 799, 867, 1413, 2397, 2601, 2669, 7191, 7379, 8007, 13583, 22137, 24021, 40749, 45373, 66411, 122247, 125443, 136119, 376329, 408357, 1128987, 2132531, 6397593, 19192779]

約数ペア:

[(1, 19192779), (3, 6397593), (9, 2132531), (17, 1128987), (47, 408357), (51, 376329), (141, 136119), (153, 125443), (157, 122247), (289, 66411), (423, 45373), (471, 40749), (799, 24021), (867, 22137), (1413, 13583), (2397, 8007), (2601, 7379), (2669, 7191)]