51122331

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 88498800

約数和(自身を除く): 37376469

約数列:

[1, 3, 9, 13, 19, 29, 39, 57, 61, 87, 117, 169, 171, 183, 247, 261, 377, 507, 549, 551, 741, 793, 1131, 1159, 1521, 1653, 1769, 2223, 2379, 3211, 3393, 3477, 4901, 4959, 5307, 7137, 7163, 9633, 10309, 10431, 14703, 15067, 15921, 21489, 22997, 28899, 30927, 33611, 44109, 45201, 64467, 68991, 92781, 93119, 100833, 135603, 195871, 206973, 279357, 298961, 302499, 436943, 587613, 838071, 896883, 1310829, 1762839, 2690649, 3932487, 5680259, 17040777, 51122331]

約数ペア:

[(1, 51122331), (3, 17040777), (9, 5680259), (13, 3932487), (19, 2690649), (29, 1762839), (39, 1310829), (57, 896883), (61, 838071), (87, 587613), (117, 436943), (169, 302499), (171, 298961), (183, 279357), (247, 206973), (261, 195871), (377, 135603), (507, 100833), (549, 93119), (551, 92781), (741, 68991), (793, 64467), (1131, 45201), (1159, 44109), (1521, 33611), (1653, 30927), (1769, 28899), (2223, 22997), (2379, 21489), (3211, 15921), (3393, 15067), (3477, 14703), (4901, 10431), (4959, 10309), (5307, 9633), (7137, 7163)]