20842542

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{7877}}^1$

素因数の和:7902

約数の個数: 48

約数和(自身を含む): 53885520

約数和(自身を除く): 33042978

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646, 7877, 15754, 23631, 47262, 55139, 70893, 110278, 141786, 165417, 212679, 330834, 385973, 425358, 496251, 771946, 992502, 1157919, 1488753, 2315838, 2977506, 3473757, 6947514, 10421271, 20842542]

約数ペア:

[(1, 20842542), (2, 10421271), (3, 6947514), (6, 3473757), (7, 2977506), (9, 2315838), (14, 1488753), (18, 1157919), (21, 992502), (27, 771946), (42, 496251), (49, 425358), (54, 385973), (63, 330834), (98, 212679), (126, 165417), (147, 141786), (189, 110278), (294, 70893), (378, 55139), (441, 47262), (882, 23631), (1323, 15754), (2646, 7877)]