21979696

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{17389}}^1$

素因数の和:17476

約数の個数: 20

約数和(自身を含む): 43127200

約数和(自身を除く): 21147504

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 17389, 34778, 69556, 139112, 278224, 1373731, 2747462, 5494924, 10989848, 21979696]

約数ペア:

[(1, 21979696), (2, 10989848), (4, 5494924), (8, 2747462), (16, 1373731), (79, 278224), (158, 139112), (316, 69556), (632, 34778), (1264, 17389)]