19726388

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:848

約数の個数: 36

約数和(自身を含む): 38710980

約数和(自身を除く): 18984592

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 121, 212, 242, 484, 583, 769, 1166, 1538, 2332, 3076, 6413, 8459, 12826, 16918, 25652, 33836, 40757, 81514, 93049, 163028, 186098, 372196, 448327, 896654, 1793308, 4931597, 9863194, 19726388]

約数ペア:

[(1, 19726388), (2, 9863194), (4, 4931597), (11, 1793308), (22, 896654), (44, 448327), (53, 372196), (106, 186098), (121, 163028), (212, 93049), (242, 81514), (484, 40757), (583, 33836), (769, 25652), (1166, 16918), (1538, 12826), (2332, 8459), (3076, 6413)]