81663687

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6449}}^1$

素因数の和:6532

約数の個数: 32

約数和(自身を含む): 140352000

約数和(自身を除く): 58688313

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1809, 4221, 6449, 12663, 19347, 45143, 58041, 135429, 174123, 406287, 432083, 1218861, 1296249, 3024581, 3888747, 9073743, 11666241, 27221229, 81663687]

約数ペア:

[(1, 81663687), (3, 27221229), (7, 11666241), (9, 9073743), (21, 3888747), (27, 3024581), (63, 1296249), (67, 1218861), (189, 432083), (201, 406287), (469, 174123), (603, 135429), (1407, 58041), (1809, 45143), (4221, 19347), (6449, 12663)]