1999221

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 32

約数和(自身を含む): 3268608

約数和(自身を除く): 1269387

約数列:

[1, 3, 7, 21, 31, 37, 83, 93, 111, 217, 249, 259, 581, 651, 777, 1147, 1743, 2573, 3071, 3441, 7719, 8029, 9213, 18011, 21497, 24087, 54033, 64491, 95201, 285603, 666407, 1999221]

約数ペア:

[(1, 1999221), (3, 666407), (7, 285603), (21, 95201), (31, 64491), (37, 54033), (83, 24087), (93, 21497), (111, 18011), (217, 9213), (249, 8029), (259, 7719), (581, 3441), (651, 3071), (777, 2573), (1147, 1743)]