19758518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 17013322

約数列:

[1, 2, 13, 19, 23, 26, 37, 38, 46, 47, 74, 94, 247, 299, 437, 481, 494, 598, 611, 703, 851, 874, 893, 962, 1081, 1222, 1406, 1702, 1739, 1786, 2162, 3478, 5681, 9139, 11063, 11362, 11609, 14053, 16169, 18278, 20539, 22126, 22607, 23218, 28106, 32338, 33041, 39997, 41078, 45214, 66082, 79994, 210197, 267007, 420394, 429533, 519961, 534014, 759943, 859066, 1039922, 1519886, 9879259, 19758518]

約数ペア:

[(1, 19758518), (2, 9879259), (13, 1519886), (19, 1039922), (23, 859066), (26, 759943), (37, 534014), (38, 519961), (46, 429533), (47, 420394), (74, 267007), (94, 210197), (247, 79994), (299, 66082), (437, 45214), (481, 41078), (494, 39997), (598, 33041), (611, 32338), (703, 28106), (851, 23218), (874, 22607), (893, 22126), (962, 20539), (1081, 18278), (1222, 16169), (1406, 14053), (1702, 11609), (1739, 11362), (1786, 11063), (2162, 9139), (3478, 5681)]