21000292755

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{503}}^1\times {\mathrm{853}}^1$

素因数の和:1628

約数の個数: 64

約数和(自身を含む): 36444183552

約数和(自身を除く): 15443890797

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 251, 503, 753, 853, 1255, 1509, 2515, 2559, 3263, 3765, 4265, 6539, 7545, 9789, 11089, 12795, 16315, 19617, 32695, 33267, 48945, 55445, 98085, 126253, 166335, 214103, 378759, 429059, 631265, 642309, 1070515, 1287177, 1641289, 1893795, 2145295, 2783339, 3211545, 4923867, 5577767, 6435885, 8206445, 8350017, 13916695, 16733301, 24619335, 27888835, 41750085, 83666505, 107693809, 323081427, 538469045, 1400019517, 1615407135, 4200058551, 7000097585, 21000292755]

約数ペア:

[(1, 21000292755), (3, 7000097585), (5, 4200058551), (13, 1615407135), (15, 1400019517), (39, 538469045), (65, 323081427), (195, 107693809), (251, 83666505), (503, 41750085), (753, 27888835), (853, 24619335), (1255, 16733301), (1509, 13916695), (2515, 8350017), (2559, 8206445), (3263, 6435885), (3765, 5577767), (4265, 4923867), (6539, 3211545), (7545, 2783339), (9789, 2145295), (11089, 1893795), (12795, 1641289), (16315, 1287177), (19617, 1070515), (32695, 642309), (33267, 631265), (48945, 429059), (55445, 378759), (98085, 214103), (126253, 166335)]