207838221

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 291540480

約数和(自身を除く): 83702259

約数列:

[1, 3, 43, 67, 129, 139, 173, 201, 417, 519, 2881, 5977, 7439, 8643, 9313, 11591, 17931, 22317, 24047, 27939, 34773, 72141, 400459, 498413, 1034021, 1201377, 1495239, 1611149, 3102063, 4833447, 69279407, 207838221]

約数ペア:

[(1, 207838221), (3, 69279407), (43, 4833447), (67, 3102063), (129, 1611149), (139, 1495239), (173, 1201377), (201, 1034021), (417, 498413), (519, 400459), (2881, 72141), (5977, 34773), (7439, 27939), (8643, 24047), (9313, 22317), (11591, 17931)]