28961905

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{26693}}^1$

素因数の和:26736

約数の個数: 16

約数和(自身を含む): 41001984

約数和(自身を除く): 12040079

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 26693, 133465, 186851, 827483, 934255, 4137415, 5792381, 28961905]

約数ペア:

[(1, 28961905), (5, 5792381), (7, 4137415), (31, 934255), (35, 827483), (155, 186851), (217, 133465), (1085, 26693)]