19877152

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 21491168

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 113, 184, 226, 239, 368, 452, 478, 736, 904, 956, 1808, 1912, 2599, 3616, 3824, 5198, 5497, 7648, 10396, 10994, 20792, 21988, 27007, 41584, 43976, 54014, 83168, 87952, 108028, 175904, 216056, 432112, 621161, 864224, 1242322, 2484644, 4969288, 9938576, 19877152]

約数ペア:

[(1, 19877152), (2, 9938576), (4, 4969288), (8, 2484644), (16, 1242322), (23, 864224), (32, 621161), (46, 432112), (92, 216056), (113, 175904), (184, 108028), (226, 87952), (239, 83168), (368, 54014), (452, 43976), (478, 41584), (736, 27007), (904, 21988), (956, 20792), (1808, 10994), (1912, 10396), (2599, 7648), (3616, 5497), (3824, 5198)]