20205199

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 24829200

約数和(自身を除く): 4624001

約数列:

[1, 7, 29, 49, 59, 203, 241, 413, 1421, 1687, 1711, 2891, 6989, 11809, 11977, 14219, 48923, 83839, 99533, 342461, 412351, 696731, 2886457, 20205199]

約数ペア:

[(1, 20205199), (7, 2886457), (29, 696731), (49, 412351), (59, 342461), (203, 99533), (241, 83839), (413, 48923), (1421, 14219), (1687, 11977), (1711, 11809), (2891, 6989)]