21047442

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1811}}^1$

素因数の和:1978

約数の個数: 32

約数和(自身を含む): 45662400

約数和(自身を除く): 24614958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 149, 298, 447, 894, 1811, 1937, 3622, 3874, 5433, 5811, 10866, 11622, 23543, 47086, 70629, 141258, 269839, 539678, 809517, 1619034, 3507907, 7015814, 10523721, 21047442]

約数ペア:

[(1, 21047442), (2, 10523721), (3, 7015814), (6, 3507907), (13, 1619034), (26, 809517), (39, 539678), (78, 269839), (149, 141258), (298, 70629), (447, 47086), (894, 23543), (1811, 11622), (1937, 10866), (3622, 5811), (3874, 5433)]