28019618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{20879}}^1$

素因数の和:20953

約数の個数: 16

約数和(自身を含む): 46604160

約数和(自身を除く): 18584542

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 20879, 41758, 229669, 459338, 1273619, 2547238, 14009809, 28019618]

約数ペア:

[(1, 28019618), (2, 14009809), (11, 2547238), (22, 1273619), (61, 459338), (122, 229669), (671, 41758), (1342, 20879)]