1681988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 3784704

約数和(自身を除く): 2102716

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 127, 154, 172, 254, 301, 308, 473, 508, 602, 889, 946, 1204, 1397, 1778, 1892, 2794, 3311, 3556, 5461, 5588, 6622, 9779, 10922, 13244, 19558, 21844, 38227, 39116, 60071, 76454, 120142, 152908, 240284, 420497, 840994, 1681988]

約数ペア:

[(1, 1681988), (2, 840994), (4, 420497), (7, 240284), (11, 152908), (14, 120142), (22, 76454), (28, 60071), (43, 39116), (44, 38227), (77, 21844), (86, 19558), (127, 13244), (154, 10922), (172, 9779), (254, 6622), (301, 5588), (308, 5461), (473, 3556), (508, 3311), (602, 2794), (889, 1892), (946, 1778), (1204, 1397)]