18370989

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7477}}^1$

素因数の和:7506

約数の個数: 32

約数和(自身を含む): 33501440

約数和(自身を除く): 15130451

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 7477, 22431, 52339, 67293, 97201, 157017, 201879, 291603, 471051, 680407, 874809, 1413153, 2041221, 2624427, 6123663, 18370989]

約数ペア:

[(1, 18370989), (3, 6123663), (7, 2624427), (9, 2041221), (13, 1413153), (21, 874809), (27, 680407), (39, 471051), (63, 291603), (91, 201879), (117, 157017), (189, 97201), (273, 67293), (351, 52339), (819, 22431), (2457, 7477)]