18862011

素因数分解:

$3^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 33242400

約数和(自身を除く): 14380389

約数列:

[1, 3, 7, 9, 21, 27, 49, 53, 63, 147, 159, 189, 269, 371, 441, 477, 807, 1113, 1323, 1431, 1883, 2421, 2597, 3339, 5649, 7263, 7791, 10017, 13181, 14257, 16947, 23373, 39543, 42771, 50841, 70119, 99799, 118629, 128313, 299397, 355887, 384939, 698593, 898191, 2095779, 2694573, 6287337, 18862011]

約数ペア:

[(1, 18862011), (3, 6287337), (7, 2694573), (9, 2095779), (21, 898191), (27, 698593), (49, 384939), (53, 355887), (63, 299397), (147, 128313), (159, 118629), (189, 99799), (269, 70119), (371, 50841), (441, 42771), (477, 39543), (807, 23373), (1113, 16947), (1323, 14257), (1431, 13181), (1883, 10017), (2421, 7791), (2597, 7263), (3339, 5649)]