20803772

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:890

約数の個数: 36

約数和(自身を含む): 40822488

約数和(自身を除く): 20018716

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 121, 212, 242, 484, 583, 811, 1166, 1622, 2332, 3244, 6413, 8921, 12826, 17842, 25652, 35684, 42983, 85966, 98131, 171932, 196262, 392524, 472813, 945626, 1891252, 5200943, 10401886, 20803772]

約数ペア:

[(1, 20803772), (2, 10401886), (4, 5200943), (11, 1891252), (22, 945626), (44, 472813), (53, 392524), (106, 196262), (121, 171932), (212, 98131), (242, 85966), (484, 42983), (583, 35684), (811, 25652), (1166, 17842), (1622, 12826), (2332, 8921), (3244, 6413)]