21489144

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12611}}^1$

素因数の和:12691

約数の個数: 32

約数和(自身を含む): 54483840

約数和(自身を除く): 32994696

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12611, 25222, 37833, 50444, 75666, 100888, 151332, 302664, 895381, 1790762, 2686143, 3581524, 5372286, 7163048, 10744572, 21489144]

約数ペア:

[(1, 21489144), (2, 10744572), (3, 7163048), (4, 5372286), (6, 3581524), (8, 2686143), (12, 1790762), (24, 895381), (71, 302664), (142, 151332), (213, 100888), (284, 75666), (426, 50444), (568, 37833), (852, 25222), (1704, 12611)]