19978462

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:173

約数の個数: 48

約数和(自身を含む): 37307520

約数和(自身を除く): 17329058

約数列:

[1, 2, 7, 14, 19, 38, 59, 67, 118, 133, 134, 266, 361, 413, 469, 722, 826, 938, 1121, 1273, 2242, 2527, 2546, 3953, 5054, 7847, 7906, 8911, 15694, 17822, 21299, 24187, 27671, 42598, 48374, 55342, 75107, 149093, 150214, 169309, 298186, 338618, 525749, 1051498, 1427033, 2854066, 9989231, 19978462]

約数ペア:

[(1, 19978462), (2, 9989231), (7, 2854066), (14, 1427033), (19, 1051498), (38, 525749), (59, 338618), (67, 298186), (118, 169309), (133, 150214), (134, 149093), (266, 75107), (361, 55342), (413, 48374), (469, 42598), (722, 27671), (826, 24187), (938, 21299), (1121, 17822), (1273, 15694), (2242, 8911), (2527, 7906), (2546, 7847), (3953, 5054)]