21981056

素因数分解:

$2^7\times {\mathrm{83}}^1\times {\mathrm{2069}}^1$

素因数の和:2166

約数の個数: 32

約数和(自身を含む): 44339400

約数和(自身を除く): 22358344

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 332, 664, 1328, 2069, 2656, 4138, 5312, 8276, 10624, 16552, 33104, 66208, 132416, 171727, 264832, 343454, 686908, 1373816, 2747632, 5495264, 10990528, 21981056]

約数ペア:

[(1, 21981056), (2, 10990528), (4, 5495264), (8, 2747632), (16, 1373816), (32, 686908), (64, 343454), (83, 264832), (128, 171727), (166, 132416), (332, 66208), (664, 33104), (1328, 16552), (2069, 10624), (2656, 8276), (4138, 5312)]