20038942

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{641}}^1$

素因数の和:697

約数の個数: 48

約数和(自身を含む): 39521520

約数和(自身を除く): 19482578

約数列:

[1, 2, 7, 11, 14, 22, 29, 49, 58, 77, 98, 154, 203, 319, 406, 539, 638, 641, 1078, 1282, 1421, 2233, 2842, 4466, 4487, 7051, 8974, 14102, 15631, 18589, 31262, 31409, 37178, 49357, 62818, 98714, 130123, 204479, 260246, 345499, 408958, 690998, 910861, 1431353, 1821722, 2862706, 10019471, 20038942]

約数ペア:

[(1, 20038942), (2, 10019471), (7, 2862706), (11, 1821722), (14, 1431353), (22, 910861), (29, 690998), (49, 408958), (58, 345499), (77, 260246), (98, 204479), (154, 130123), (203, 98714), (319, 62818), (406, 49357), (539, 37178), (638, 31409), (641, 31262), (1078, 18589), (1282, 15631), (1421, 14102), (2233, 8974), (2842, 7051), (4466, 4487)]