21431344

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{463}}^1$

素因数の和:745

約数の個数: 40

約数和(自身を含む): 45568512

約数和(自身を除く): 24137168

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 263, 463, 526, 926, 1052, 1852, 2104, 2893, 3704, 4208, 5093, 5786, 7408, 10186, 11572, 20372, 23144, 40744, 46288, 81488, 121769, 243538, 487076, 974152, 1339459, 1948304, 2678918, 5357836, 10715672, 21431344]

約数ペア:

[(1, 21431344), (2, 10715672), (4, 5357836), (8, 2678918), (11, 1948304), (16, 1339459), (22, 974152), (44, 487076), (88, 243538), (176, 121769), (263, 81488), (463, 46288), (526, 40744), (926, 23144), (1052, 20372), (1852, 11572), (2104, 10186), (2893, 7408), (3704, 5786), (4208, 5093)]