19966449

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 29666304

約数和(自身を除く): 9699855

約数列:

[1, 3, 17, 31, 51, 73, 93, 173, 219, 519, 527, 1241, 1581, 2263, 2941, 3723, 5363, 6789, 8823, 12629, 16089, 37887, 38471, 91171, 115413, 214693, 273513, 391499, 644079, 1174497, 6655483, 19966449]

約数ペア:

[(1, 19966449), (3, 6655483), (17, 1174497), (31, 644079), (51, 391499), (73, 273513), (93, 214693), (173, 115413), (219, 91171), (519, 38471), (527, 37887), (1241, 16089), (1581, 12629), (2263, 8823), (2941, 6789), (3723, 5363)]