42878241

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1609}}^1$

素因数の和:1675

約数の個数: 40

約数和(自身を含む): 74807040

約数和(自身を除く): 31928799

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 329, 423, 567, 987, 1269, 1609, 2961, 3807, 4827, 8883, 11263, 14481, 26649, 33789, 43443, 75623, 101367, 130329, 226869, 304101, 529361, 680607, 912303, 1588083, 2041821, 4764249, 6125463, 14292747, 42878241]

約数ペア:

[(1, 42878241), (3, 14292747), (7, 6125463), (9, 4764249), (21, 2041821), (27, 1588083), (47, 912303), (63, 680607), (81, 529361), (141, 304101), (189, 226869), (329, 130329), (423, 101367), (567, 75623), (987, 43443), (1269, 33789), (1609, 26649), (2961, 14481), (3807, 11263), (4827, 8883)]