20914245

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 41827968

約数和(自身を除く): 20913723

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 121, 165, 167, 207, 253, 345, 363, 495, 501, 605, 759, 835, 1035, 1089, 1265, 1503, 1815, 1837, 2277, 2505, 2783, 3795, 3841, 5445, 5511, 7515, 8349, 9185, 11385, 11523, 13915, 16533, 19205, 20207, 25047, 27555, 34569, 41745, 42251, 57615, 60621, 82665, 101035, 125235, 126753, 172845, 181863, 211255, 303105, 380259, 464761, 633765, 909315, 1394283, 1901295, 2323805, 4182849, 6971415, 20914245]

約数ペア:

[(1, 20914245), (3, 6971415), (5, 4182849), (9, 2323805), (11, 1901295), (15, 1394283), (23, 909315), (33, 633765), (45, 464761), (55, 380259), (69, 303105), (99, 211255), (115, 181863), (121, 172845), (165, 126753), (167, 125235), (207, 101035), (253, 82665), (345, 60621), (363, 57615), (495, 42251), (501, 41745), (605, 34569), (759, 27555), (835, 25047), (1035, 20207), (1089, 19205), (1265, 16533), (1503, 13915), (1815, 11523), (1837, 11385), (2277, 9185), (2505, 8349), (2783, 7515), (3795, 5511), (3841, 5445)]