81087909

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 135806976

約数和(自身を除く): 54719067

約数列:

[1, 3, 7, 17, 21, 31, 51, 93, 119, 217, 289, 357, 431, 527, 651, 867, 1293, 1581, 2023, 3017, 3689, 6069, 7327, 8959, 9051, 11067, 13361, 21981, 26877, 40083, 51289, 62713, 93527, 124559, 153867, 188139, 227137, 280581, 373677, 681411, 871913, 1589959, 2615739, 3861329, 4769877, 11583987, 27029303, 81087909]

約数ペア:

[(1, 81087909), (3, 27029303), (7, 11583987), (17, 4769877), (21, 3861329), (31, 2615739), (51, 1589959), (93, 871913), (119, 681411), (217, 373677), (289, 280581), (357, 227137), (431, 188139), (527, 153867), (651, 124559), (867, 93527), (1293, 62713), (1581, 51289), (2023, 40083), (3017, 26877), (3689, 21981), (6069, 13361), (7327, 11067), (8959, 9051)]