218080947

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{1451}}^1$

素因数の和:1899

約数の個数: 32

約数和(自身を含む): 352940544

約数和(自身を除く): 134859597

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 421, 1263, 1451, 2947, 4353, 7157, 8841, 10157, 21471, 24667, 30471, 50099, 74001, 150297, 172669, 518007, 610871, 1832613, 4276097, 10384807, 12828291, 31154421, 72693649, 218080947]

約数ペア:

[(1, 218080947), (3, 72693649), (7, 31154421), (17, 12828291), (21, 10384807), (51, 4276097), (119, 1832613), (357, 610871), (421, 518007), (1263, 172669), (1451, 150297), (2947, 74001), (4353, 50099), (7157, 30471), (8841, 24667), (10157, 21471)]