218200311

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^2\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 60

約数和(自身を含む): 382450992

約数和(自身を除く): 164250681

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 137, 159, 189, 371, 411, 477, 567, 959, 1113, 1233, 1431, 2809, 2877, 3339, 3699, 4293, 7261, 8427, 8631, 10017, 11097, 19663, 21783, 25281, 25893, 30051, 50827, 58989, 65349, 75843, 77679, 152481, 176967, 196047, 227529, 384833, 457443, 530901, 588141, 1154499, 1372329, 1592703, 2693831, 3463497, 4116987, 8081493, 10390491, 24244479, 31171473, 72733437, 218200311]

約数ペア:

[(1, 218200311), (3, 72733437), (7, 31171473), (9, 24244479), (21, 10390491), (27, 8081493), (53, 4116987), (63, 3463497), (81, 2693831), (137, 1592703), (159, 1372329), (189, 1154499), (371, 588141), (411, 530901), (477, 457443), (567, 384833), (959, 227529), (1113, 196047), (1233, 176967), (1431, 152481), (2809, 77679), (2877, 75843), (3339, 65349), (3699, 58989), (4293, 50827), (7261, 30051), (8427, 25893), (8631, 25281), (10017, 21783), (11097, 19663)]