81173793

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 118972800

約数和(自身を除く): 37799007

約数列:

[1, 3, 17, 51, 53, 59, 159, 177, 509, 901, 1003, 1527, 2703, 3009, 3127, 8653, 9381, 25959, 26977, 30031, 53159, 80931, 90093, 159477, 458609, 510527, 1375827, 1531581, 1591643, 4774929, 27057931, 81173793]

約数ペア:

[(1, 81173793), (3, 27057931), (17, 4774929), (51, 1591643), (53, 1531581), (59, 1375827), (159, 510527), (177, 458609), (509, 159477), (901, 90093), (1003, 80931), (1527, 53159), (2703, 30031), (3009, 26977), (3127, 25959), (8653, 9381)]