42721371

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20549}}^1$

素因数の和:20576

約数の個数: 32

約数和(自身を含む): 78912000

約数和(自身を除く): 36190629

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 20549, 61647, 143843, 184941, 226039, 431529, 554823, 678117, 1294587, 1582273, 2034351, 3883761, 4746819, 6103053, 14240457, 42721371]

約数ペア:

[(1, 42721371), (3, 14240457), (7, 6103053), (9, 4746819), (11, 3883761), (21, 2034351), (27, 1582273), (33, 1294587), (63, 678117), (77, 554823), (99, 431529), (189, 226039), (231, 184941), (297, 143843), (693, 61647), (2079, 20549)]