21905933

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^2$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 27194880

約数和(自身を除く): 5288947

約数列:

[1, 7, 29, 31, 59, 203, 217, 413, 899, 1711, 1829, 3481, 6293, 11977, 12803, 24367, 53041, 100949, 107911, 371287, 706643, 755377, 3129419, 21905933]

約数ペア:

[(1, 21905933), (7, 3129419), (29, 755377), (31, 706643), (59, 371287), (203, 107911), (217, 100949), (413, 53041), (899, 24367), (1711, 12803), (1829, 11977), (3481, 6293)]