20879746

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 13392254

約数列:

[1, 2, 19, 38, 59, 67, 118, 134, 139, 278, 1121, 1273, 2242, 2546, 2641, 3953, 5282, 7906, 8201, 9313, 16402, 18626, 75107, 150214, 155819, 176947, 311638, 353894, 549467, 1098934, 10439873, 20879746]

約数ペア:

[(1, 20879746), (2, 10439873), (19, 1098934), (38, 549467), (59, 353894), (67, 311638), (118, 176947), (134, 155819), (139, 150214), (278, 75107), (1121, 18626), (1273, 16402), (2242, 9313), (2546, 8201), (2641, 7906), (3953, 5282)]