21272373

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 31868928

約数和(自身を除く): 10596555

約数列:

[1, 3, 9, 37, 111, 127, 333, 381, 503, 1143, 1509, 4527, 4699, 14097, 18611, 42291, 55833, 63881, 167499, 191643, 574929, 2363597, 7090791, 21272373]

約数ペア:

[(1, 21272373), (3, 7090791), (9, 2363597), (37, 574929), (111, 191643), (127, 167499), (333, 63881), (381, 55833), (503, 42291), (1143, 18611), (1509, 14097), (4527, 4699)]