21357156

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{347}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 52383744

約数和(自身を除く): 31026588

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 223, 276, 347, 446, 669, 694, 892, 1041, 1338, 1388, 2082, 2676, 4164, 5129, 7981, 10258, 15387, 15962, 20516, 23943, 30774, 31924, 47886, 61548, 77381, 95772, 154762, 232143, 309524, 464286, 928572, 1779763, 3559526, 5339289, 7119052, 10678578, 21357156]

約数ペア:

[(1, 21357156), (2, 10678578), (3, 7119052), (4, 5339289), (6, 3559526), (12, 1779763), (23, 928572), (46, 464286), (69, 309524), (92, 232143), (138, 154762), (223, 95772), (276, 77381), (347, 61548), (446, 47886), (669, 31924), (694, 30774), (892, 23943), (1041, 20516), (1338, 15962), (1388, 15387), (2082, 10258), (2676, 7981), (4164, 5129)]