19899043871

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1\times {\mathrm{1613}}^1$

素因数の和:2199

約数の個数: 32

約数和(自身を含む): 23716761600

約数和(自身を除く): 3817717729

約数列:

[1, 7, 31, 139, 217, 409, 973, 1613, 2863, 4309, 11291, 12679, 30163, 50003, 56851, 88753, 224207, 350021, 397957, 659717, 1569449, 1762381, 4618019, 6950417, 12336667, 20451227, 48652919, 91700663, 143158589, 641904641, 2842720553, 19899043871]

約数ペア:

[(1, 19899043871), (7, 2842720553), (31, 641904641), (139, 143158589), (217, 91700663), (409, 48652919), (973, 20451227), (1613, 12336667), (2863, 6950417), (4309, 4618019), (11291, 1762381), (12679, 1569449), (30163, 659717), (50003, 397957), (56851, 350021), (88753, 224207)]