19741072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{887}}^1$

素因数の和:1015

約数の個数: 40

約数和(自身を含む): 41622336

約数和(自身を除く): 21881264

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 107, 208, 214, 428, 856, 887, 1391, 1712, 1774, 2782, 3548, 5564, 7096, 11128, 11531, 14192, 22256, 23062, 46124, 92248, 94909, 184496, 189818, 379636, 759272, 1233817, 1518544, 2467634, 4935268, 9870536, 19741072]

約数ペア:

[(1, 19741072), (2, 9870536), (4, 4935268), (8, 2467634), (13, 1518544), (16, 1233817), (26, 759272), (52, 379636), (104, 189818), (107, 184496), (208, 94909), (214, 92248), (428, 46124), (856, 23062), (887, 22256), (1391, 14192), (1712, 11531), (1774, 11128), (2782, 7096), (3548, 5564)]