20681384

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3709}}^1$

素因数の和:3773

約数の個数: 32

約数和(自身を含む): 42071400

約数和(自身を除く): 21390016

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3709, 5576, 7418, 14836, 29672, 63053, 126106, 152069, 252212, 304138, 504424, 608276, 1216552, 2585173, 5170346, 10340692, 20681384]

約数ペア:

[(1, 20681384), (2, 10340692), (4, 5170346), (8, 2585173), (17, 1216552), (34, 608276), (41, 504424), (68, 304138), (82, 252212), (136, 152069), (164, 126106), (328, 63053), (697, 29672), (1394, 14836), (2788, 7418), (3709, 5576)]