21389130

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11317}}^1$

素因数の和:11340

約数の個数: 64

約数和(自身を含む): 65191680

約数和(自身を除く): 43802550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11317, 22634, 33951, 56585, 67902, 79219, 101853, 113170, 158438, 169755, 203706, 237657, 305559, 339510, 396095, 475314, 509265, 611118, 712971, 792190, 1018530, 1188285, 1425942, 1527795, 2138913, 2376570, 3055590, 3564855, 4277826, 7129710, 10694565, 21389130]

約数ペア:

[(1, 21389130), (2, 10694565), (3, 7129710), (5, 4277826), (6, 3564855), (7, 3055590), (9, 2376570), (10, 2138913), (14, 1527795), (15, 1425942), (18, 1188285), (21, 1018530), (27, 792190), (30, 712971), (35, 611118), (42, 509265), (45, 475314), (54, 396095), (63, 339510), (70, 305559), (90, 237657), (105, 203706), (126, 169755), (135, 158438), (189, 113170), (210, 101853), (270, 79219), (315, 67902), (378, 56585), (630, 33951), (945, 22634), (1890, 11317)]