21311754

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:814

約数の個数: 32

約数和(自身を含む): 44703360

約数和(自身を除く): 23391606

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 389, 397, 778, 794, 1167, 1191, 2334, 2382, 8947, 9131, 17894, 18262, 26841, 27393, 53682, 54786, 154433, 308866, 463299, 926598, 3551959, 7103918, 10655877, 21311754]

約数ペア:

[(1, 21311754), (2, 10655877), (3, 7103918), (6, 3551959), (23, 926598), (46, 463299), (69, 308866), (138, 154433), (389, 54786), (397, 53682), (778, 27393), (794, 26841), (1167, 18262), (1191, 17894), (2334, 9131), (2382, 8947)]