18982215

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:453

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 20416185

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 53, 63, 105, 135, 159, 189, 265, 315, 371, 379, 477, 795, 945, 1113, 1137, 1431, 1855, 1895, 2385, 2653, 3339, 3411, 5565, 5685, 7155, 7959, 10017, 10233, 13265, 16695, 17055, 20087, 23877, 39795, 50085, 51165, 60261, 71631, 100435, 119385, 140609, 180783, 301305, 358155, 421827, 542349, 703045, 903915, 1265481, 2109135, 2711745, 3796443, 6327405, 18982215]

約数ペア:

[(1, 18982215), (3, 6327405), (5, 3796443), (7, 2711745), (9, 2109135), (15, 1265481), (21, 903915), (27, 703045), (35, 542349), (45, 421827), (53, 358155), (63, 301305), (105, 180783), (135, 140609), (159, 119385), (189, 100435), (265, 71631), (315, 60261), (371, 51165), (379, 50085), (477, 39795), (795, 23877), (945, 20087), (1113, 17055), (1137, 16695), (1431, 13265), (1855, 10233), (1895, 10017), (2385, 7959), (2653, 7155), (3339, 5685), (3411, 5565)]