21467986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 35164800

約数和(自身を除く): 13696814

約数列:

[1, 2, 19, 38, 71, 73, 109, 142, 146, 218, 1349, 1387, 2071, 2698, 2774, 4142, 5183, 7739, 7957, 10366, 15478, 15914, 98477, 147041, 151183, 196954, 294082, 302366, 564947, 1129894, 10733993, 21467986]

約数ペア:

[(1, 21467986), (2, 10733993), (19, 1129894), (38, 564947), (71, 302366), (73, 294082), (109, 196954), (142, 151183), (146, 147041), (218, 98477), (1349, 15914), (1387, 15478), (2071, 10366), (2698, 7957), (2774, 7739), (4142, 5183)]