20626815

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{839}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15661185

約数列:

[1, 3, 5, 11, 15, 33, 55, 149, 165, 447, 745, 839, 1639, 2235, 2517, 4195, 4917, 8195, 9229, 12585, 24585, 27687, 46145, 125011, 138435, 375033, 625055, 1375121, 1875165, 4125363, 6875605, 20626815]

約数ペア:

[(1, 20626815), (3, 6875605), (5, 4125363), (11, 1875165), (15, 1375121), (33, 625055), (55, 375033), (149, 138435), (165, 125011), (447, 46145), (745, 27687), (839, 24585), (1639, 12585), (2235, 9229), (2517, 8195), (4195, 4917)]