138840909

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 198276096

約数和(自身を除く): 59435187

約数列:

[1, 3, 31, 37, 93, 111, 157, 257, 471, 771, 1147, 3441, 4867, 5809, 7967, 9509, 14601, 17427, 23901, 28527, 40349, 121047, 180079, 294779, 540237, 884337, 1250819, 1492913, 3752457, 4478739, 46280303, 138840909]

約数ペア:

[(1, 138840909), (3, 46280303), (31, 4478739), (37, 3752457), (93, 1492913), (111, 1250819), (157, 884337), (257, 540237), (471, 294779), (771, 180079), (1147, 121047), (3441, 40349), (4867, 28527), (5809, 23901), (7967, 17427), (9509, 14601)]