20202975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6907}}^1$

素因数の和:6936

約数の個数: 36

約数和(自身を含む): 38974936

約数和(自身を除く): 18771961

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 6907, 20721, 34535, 62163, 89791, 103605, 172675, 269373, 310815, 448955, 518025, 808119, 1346865, 1554075, 2244775, 4040595, 6734325, 20202975]

約数ペア:

[(1, 20202975), (3, 6734325), (5, 4040595), (9, 2244775), (13, 1554075), (15, 1346865), (25, 808119), (39, 518025), (45, 448955), (65, 310815), (75, 269373), (117, 172675), (195, 103605), (225, 89791), (325, 62163), (585, 34535), (975, 20721), (2925, 6907)]