18633979

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 24837120

約数和(自身を除く): 6203141

約数列:

[1, 7, 13, 23, 29, 91, 161, 203, 299, 307, 377, 667, 2093, 2149, 2639, 3991, 4669, 7061, 8671, 8903, 27937, 49427, 60697, 62321, 91793, 115739, 204769, 642551, 810173, 1433383, 2661997, 18633979]

約数ペア:

[(1, 18633979), (7, 2661997), (13, 1433383), (23, 810173), (29, 642551), (91, 204769), (161, 115739), (203, 91793), (299, 62321), (307, 60697), (377, 49427), (667, 27937), (2093, 8903), (2149, 8671), (2639, 7061), (3991, 4669)]