21666138

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{929}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 49014720

約数和(自身を除く): 27348582

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 169, 299, 338, 507, 598, 897, 929, 1014, 1794, 1858, 2787, 3887, 5574, 7774, 11661, 12077, 21367, 23322, 24154, 36231, 42734, 64101, 72462, 128202, 157001, 277771, 314002, 471003, 555542, 833313, 942006, 1666626, 3611023, 7222046, 10833069, 21666138]

約数ペア:

[(1, 21666138), (2, 10833069), (3, 7222046), (6, 3611023), (13, 1666626), (23, 942006), (26, 833313), (39, 555542), (46, 471003), (69, 314002), (78, 277771), (138, 157001), (169, 128202), (299, 72462), (338, 64101), (507, 42734), (598, 36231), (897, 24154), (929, 23322), (1014, 21367), (1794, 12077), (1858, 11661), (2787, 7774), (3887, 5574)]