18690399

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7607}}^1$

素因数の和:7636

約数の個数: 32

約数和(自身を含む): 34083840

約数和(自身を除く): 15393441

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 7607, 22821, 53249, 68463, 98891, 159747, 205389, 296673, 479241, 692237, 890019, 1437723, 2076711, 2670057, 6230133, 18690399]

約数ペア:

[(1, 18690399), (3, 6230133), (7, 2670057), (9, 2076711), (13, 1437723), (21, 890019), (27, 692237), (39, 479241), (63, 296673), (91, 205389), (117, 159747), (189, 98891), (273, 68463), (351, 53249), (819, 22821), (2457, 7607)]