19995768

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{7121}}^1$

素因数の和:7149

約数の個数: 64

約数和(自身を含む): 59824800

約数和(自身を除く): 39829032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 104, 108, 117, 156, 216, 234, 312, 351, 468, 702, 936, 1404, 2808, 7121, 14242, 21363, 28484, 42726, 56968, 64089, 85452, 92573, 128178, 170904, 185146, 192267, 256356, 277719, 370292, 384534, 512712, 555438, 740584, 769068, 833157, 1110876, 1538136, 1666314, 2221752, 2499471, 3332628, 4998942, 6665256, 9997884, 19995768]

約数ペア:

[(1, 19995768), (2, 9997884), (3, 6665256), (4, 4998942), (6, 3332628), (8, 2499471), (9, 2221752), (12, 1666314), (13, 1538136), (18, 1110876), (24, 833157), (26, 769068), (27, 740584), (36, 555438), (39, 512712), (52, 384534), (54, 370292), (72, 277719), (78, 256356), (104, 192267), (108, 185146), (117, 170904), (156, 128178), (216, 92573), (234, 85452), (312, 64089), (351, 56968), (468, 42726), (702, 28484), (936, 21363), (1404, 14242), (2808, 7121)]