21571638

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:761

約数の個数: 48

約数和(自身を含む): 48595008

約数和(自身を除く): 27023370

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 121, 129, 242, 258, 363, 473, 691, 726, 946, 1382, 1419, 2073, 2838, 4146, 5203, 7601, 10406, 15202, 15609, 22803, 29713, 31218, 45606, 59426, 83611, 89139, 167222, 178278, 250833, 326843, 501666, 653686, 980529, 1961058, 3595273, 7190546, 10785819, 21571638]

約数ペア:

[(1, 21571638), (2, 10785819), (3, 7190546), (6, 3595273), (11, 1961058), (22, 980529), (33, 653686), (43, 501666), (66, 326843), (86, 250833), (121, 178278), (129, 167222), (242, 89139), (258, 83611), (363, 59426), (473, 45606), (691, 31218), (726, 29713), (946, 22803), (1382, 15609), (1419, 15202), (2073, 10406), (2838, 7601), (4146, 5203)]