19661538

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{3037}}^1$

素因数の和:3138

約数の個数: 32

約数和(自身を含む): 42872256

約数和(自身を除く): 23210718

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 83, 166, 249, 498, 1079, 2158, 3037, 3237, 6074, 6474, 9111, 18222, 39481, 78962, 118443, 236886, 252071, 504142, 756213, 1512426, 3276923, 6553846, 9830769, 19661538]

約数ペア:

[(1, 19661538), (2, 9830769), (3, 6553846), (6, 3276923), (13, 1512426), (26, 756213), (39, 504142), (78, 252071), (83, 236886), (166, 118443), (249, 78962), (498, 39481), (1079, 18222), (2158, 9111), (3037, 6474), (3237, 6074)]