12171818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:230

約数の個数: 32

約数和(自身を含む): 20088000

約数和(自身を除く): 7916182

約数列:

[1, 2, 19, 38, 59, 61, 89, 118, 122, 178, 1121, 1159, 1691, 2242, 2318, 3382, 3599, 5251, 5429, 7198, 10502, 10858, 68381, 99769, 103151, 136762, 199538, 206302, 320311, 640622, 6085909, 12171818]

約数ペア:

[(1, 12171818), (2, 6085909), (19, 640622), (38, 320311), (59, 206302), (61, 199538), (89, 136762), (118, 103151), (122, 99769), (178, 68381), (1121, 10858), (1159, 10502), (1691, 7198), (2242, 5429), (2318, 5251), (3382, 3599)]