27821421

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 43683840

約数和(自身を除く): 15862419

約数列:

[1, 3, 9, 23, 27, 69, 71, 207, 213, 621, 631, 639, 1633, 1893, 1917, 4899, 5679, 14513, 14697, 17037, 43539, 44091, 44801, 130617, 134403, 391851, 403209, 1030423, 1209627, 3091269, 9273807, 27821421]

約数ペア:

[(1, 27821421), (3, 9273807), (9, 3091269), (23, 1209627), (27, 1030423), (69, 403209), (71, 391851), (207, 134403), (213, 130617), (621, 44801), (631, 44091), (639, 43539), (1633, 17037), (1893, 14697), (1917, 14513), (4899, 5679)]