20797686

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12697}}^1$

素因数の和:12725

約数の個数: 48

約数和(自身を含む): 55464864

約数和(自身を除く): 34667178

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12697, 25394, 38091, 76182, 88879, 114273, 165061, 177758, 228546, 266637, 330122, 495183, 533274, 799911, 990366, 1155427, 1485549, 1599822, 2310854, 2971098, 3466281, 6932562, 10398843, 20797686]

約数ペア:

[(1, 20797686), (2, 10398843), (3, 6932562), (6, 3466281), (7, 2971098), (9, 2310854), (13, 1599822), (14, 1485549), (18, 1155427), (21, 990366), (26, 799911), (39, 533274), (42, 495183), (63, 330122), (78, 266637), (91, 228546), (117, 177758), (126, 165061), (182, 114273), (234, 88879), (273, 76182), (546, 38091), (819, 25394), (1638, 12697)]