20844957

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 13023843

約数列:

[1, 3, 7, 19, 21, 57, 89, 133, 267, 399, 587, 623, 1691, 1761, 1869, 4109, 5073, 11153, 11837, 12327, 33459, 35511, 52243, 78071, 156729, 234213, 365701, 992617, 1097103, 2977851, 6948319, 20844957]

約数ペア:

[(1, 20844957), (3, 6948319), (7, 2977851), (19, 1097103), (21, 992617), (57, 365701), (89, 234213), (133, 156729), (267, 78071), (399, 52243), (587, 35511), (623, 33459), (1691, 12327), (1761, 11837), (1869, 11153), (4109, 5073)]