21920642

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:450

約数の個数: 24

約数和(自身を含む): 35172396

約数和(自身を除く): 13251754

約数列:

[1, 2, 19, 38, 97, 194, 313, 361, 626, 722, 1843, 3686, 5947, 11894, 30361, 35017, 60722, 70034, 112993, 225986, 576859, 1153718, 10960321, 21920642]

約数ペア:

[(1, 21920642), (2, 10960321), (19, 1153718), (38, 576859), (97, 225986), (194, 112993), (313, 70034), (361, 60722), (626, 35017), (722, 30361), (1843, 11894), (3686, 5947)]