19613769

素因数分解:

$3^1\times 7^5\times {\mathrm{389}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 30588480

約数和(自身を除く): 10974711

約数列:

[1, 3, 7, 21, 49, 147, 343, 389, 1029, 1167, 2401, 2723, 7203, 8169, 16807, 19061, 50421, 57183, 133427, 400281, 933989, 2801967, 6537923, 19613769]

約数ペア:

[(1, 19613769), (3, 6537923), (7, 2801967), (21, 933989), (49, 400281), (147, 133427), (343, 57183), (389, 50421), (1029, 19061), (1167, 16807), (2401, 8169), (2723, 7203)]