21099309

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{379}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 35312640

約数和(自身を除く): 14213331

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 241, 379, 723, 1137, 1687, 2651, 2653, 4169, 5061, 7953, 7959, 12507, 18557, 29183, 55671, 87549, 91339, 274017, 639373, 1004729, 1918119, 3014187, 7033103, 21099309]

約数ペア:

[(1, 21099309), (3, 7033103), (7, 3014187), (11, 1918119), (21, 1004729), (33, 639373), (77, 274017), (231, 91339), (241, 87549), (379, 55671), (723, 29183), (1137, 18557), (1687, 12507), (2651, 7959), (2653, 7953), (4169, 5061)]