20355478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 36271872

約数和(自身を除く): 15916394

約数列:

[1, 2, 11, 13, 22, 26, 103, 143, 206, 286, 691, 1133, 1339, 1382, 2266, 2678, 7601, 8983, 14729, 15202, 17966, 29458, 71173, 98813, 142346, 197626, 782903, 925249, 1565806, 1850498, 10177739, 20355478]

約数ペア:

[(1, 20355478), (2, 10177739), (11, 1850498), (13, 1565806), (22, 925249), (26, 782903), (103, 197626), (143, 142346), (206, 98813), (286, 71173), (691, 29458), (1133, 17966), (1339, 15202), (1382, 14729), (2266, 8983), (2678, 7601)]