21488718

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 44243712

約数和(自身を除く): 22754994

約数列:

[1, 2, 3, 6, 71, 73, 142, 146, 213, 219, 426, 438, 691, 1382, 2073, 4146, 5183, 10366, 15549, 31098, 49061, 50443, 98122, 100886, 147183, 151329, 294366, 302658, 3581453, 7162906, 10744359, 21488718]

約数ペア:

[(1, 21488718), (2, 10744359), (3, 7162906), (6, 3581453), (71, 302658), (73, 294366), (142, 151329), (146, 147183), (213, 100886), (219, 98122), (426, 50443), (438, 49061), (691, 31098), (1382, 15549), (2073, 10366), (4146, 5183)]