19368415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 26998272

約数和(自身を除く): 7629857

約数列:

[1, 5, 11, 23, 55, 61, 115, 251, 253, 305, 671, 1255, 1265, 1403, 2761, 3355, 5773, 7015, 13805, 15311, 15433, 28865, 63503, 76555, 77165, 168421, 317515, 352153, 842105, 1760765, 3873683, 19368415]

約数ペア:

[(1, 19368415), (5, 3873683), (11, 1760765), (23, 842105), (55, 352153), (61, 317515), (115, 168421), (251, 77165), (253, 76555), (305, 63503), (671, 28865), (1255, 15433), (1265, 15311), (1403, 13805), (2761, 7015), (3355, 5773)]