19137921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 10514559

約数列:

[1, 3, 11, 19, 33, 57, 131, 209, 233, 393, 627, 699, 1441, 2489, 2563, 4323, 4427, 7467, 7689, 13281, 27379, 30523, 48697, 82137, 91569, 146091, 335753, 579937, 1007259, 1739811, 6379307, 19137921]

約数ペア:

[(1, 19137921), (3, 6379307), (11, 1739811), (19, 1007259), (33, 579937), (57, 335753), (131, 146091), (209, 91569), (233, 82137), (393, 48697), (627, 30523), (699, 27379), (1441, 13281), (2489, 7689), (2563, 7467), (4323, 4427)]