1640157981

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{133967}}^1$

素因数の和:134041

約数の個数: 32

約数和(自身を含む): 2777960448

約数和(自身を除く): 1137802467

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 159, 231, 371, 583, 1113, 1749, 4081, 12243, 133967, 401901, 937769, 1473637, 2813307, 4420911, 7100251, 10315459, 21300753, 30946377, 49701757, 78102761, 149105271, 234308283, 546719327, 1640157981]

約数ペア:

[(1, 1640157981), (3, 546719327), (7, 234308283), (11, 149105271), (21, 78102761), (33, 49701757), (53, 30946377), (77, 21300753), (159, 10315459), (231, 7100251), (371, 4420911), (583, 2813307), (1113, 1473637), (1749, 937769), (4081, 401901), (12243, 133967)]