245421

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:121

約数の個数: 24

約数和(自身を含む): 403104

約数和(自身を除く): 157683

約数列:

[1, 3, 9, 11, 33, 37, 67, 99, 111, 201, 333, 407, 603, 737, 1221, 2211, 2479, 3663, 6633, 7437, 22311, 27269, 81807, 245421]

約数ペア:

[(1, 245421), (3, 81807), (9, 27269), (11, 22311), (33, 7437), (37, 6633), (67, 3663), (99, 2479), (111, 2211), (201, 1221), (333, 737), (407, 603)]