20017089

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 31322772

約数和(自身を除く): 11305683

約数列:

[1, 3, 9, 19, 57, 61, 101, 171, 183, 303, 361, 549, 909, 1083, 1159, 1919, 3249, 3477, 5757, 6161, 10431, 17271, 18483, 22021, 36461, 55449, 66063, 109383, 117059, 198189, 328149, 351177, 1053531, 2224121, 6672363, 20017089]

約数ペア:

[(1, 20017089), (3, 6672363), (9, 2224121), (19, 1053531), (57, 351177), (61, 328149), (101, 198189), (171, 117059), (183, 109383), (303, 66063), (361, 55449), (549, 36461), (909, 22021), (1083, 18483), (1159, 17271), (1919, 10431), (3249, 6161), (3477, 5757)]