19218848

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:861

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 22693792

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 71, 88, 142, 176, 284, 352, 568, 769, 781, 1136, 1538, 1562, 2272, 3076, 3124, 6152, 6248, 8459, 12304, 12496, 16918, 24608, 24992, 33836, 54599, 67672, 109198, 135344, 218396, 270688, 436792, 600589, 873584, 1201178, 1747168, 2402356, 4804712, 9609424, 19218848]

約数ペア:

[(1, 19218848), (2, 9609424), (4, 4804712), (8, 2402356), (11, 1747168), (16, 1201178), (22, 873584), (32, 600589), (44, 436792), (71, 270688), (88, 218396), (142, 135344), (176, 109198), (284, 67672), (352, 54599), (568, 33836), (769, 24992), (781, 24608), (1136, 16918), (1538, 12496), (1562, 12304), (2272, 8459), (3076, 6248), (3124, 6152)]