21255642

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20717}}^1$

素因数の和:20747

約数の個数: 32

約数和(自身を含む): 49723200

約数和(自身を除く): 28467558

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20717, 41434, 62151, 124302, 186453, 372906, 393623, 559359, 787246, 1118718, 1180869, 2361738, 3542607, 7085214, 10627821, 21255642]

約数ペア:

[(1, 21255642), (2, 10627821), (3, 7085214), (6, 3542607), (9, 2361738), (18, 1180869), (19, 1118718), (27, 787246), (38, 559359), (54, 393623), (57, 372906), (114, 186453), (171, 124302), (342, 62151), (513, 41434), (1026, 20717)]