31908429

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 58960512

約数和(自身を除く): 27052083

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 61, 63, 69, 133, 161, 171, 183, 207, 361, 399, 427, 437, 483, 549, 1083, 1159, 1197, 1281, 1311, 1403, 1449, 2527, 3059, 3249, 3477, 3843, 3933, 4209, 7581, 8113, 8303, 9177, 9821, 10431, 12627, 22021, 22743, 24339, 24909, 26657, 27531, 29463, 58121, 66063, 73017, 74727, 79971, 88389, 154147, 174363, 186599, 198189, 239913, 462441, 506483, 523089, 559797, 1387323, 1519449, 1679391, 3545381, 4558347, 10636143, 31908429]

約数ペア:

[(1, 31908429), (3, 10636143), (7, 4558347), (9, 3545381), (19, 1679391), (21, 1519449), (23, 1387323), (57, 559797), (61, 523089), (63, 506483), (69, 462441), (133, 239913), (161, 198189), (171, 186599), (183, 174363), (207, 154147), (361, 88389), (399, 79971), (427, 74727), (437, 73017), (483, 66063), (549, 58121), (1083, 29463), (1159, 27531), (1197, 26657), (1281, 24909), (1311, 24339), (1403, 22743), (1449, 22021), (2527, 12627), (3059, 10431), (3249, 9821), (3477, 9177), (3843, 8303), (3933, 8113), (4209, 7581)]