20657756

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6529}}^1$

素因数の和:6653

約数の個数: 24

約数和(自身を含む): 41687520

約数和(自身を除く): 21029764

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6529, 13058, 26116, 45703, 91406, 182812, 737777, 1475554, 2951108, 5164439, 10328878, 20657756]

約数ペア:

[(1, 20657756), (2, 10328878), (4, 5164439), (7, 2951108), (14, 1475554), (28, 737777), (113, 182812), (226, 91406), (452, 45703), (791, 26116), (1582, 13058), (3164, 6529)]