19181188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 38058496

約数和(自身を除く): 18877308

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 73, 124, 146, 163, 292, 326, 403, 652, 806, 949, 1612, 1898, 2119, 2263, 3796, 4238, 4526, 5053, 8476, 9052, 10106, 11899, 20212, 23798, 29419, 47596, 58838, 65689, 117676, 131378, 154687, 262756, 309374, 368869, 618748, 737738, 1475476, 4795297, 9590594, 19181188]

約数ペア:

[(1, 19181188), (2, 9590594), (4, 4795297), (13, 1475476), (26, 737738), (31, 618748), (52, 368869), (62, 309374), (73, 262756), (124, 154687), (146, 131378), (163, 117676), (292, 65689), (326, 58838), (403, 47596), (652, 29419), (806, 23798), (949, 20212), (1612, 11899), (1898, 10106), (2119, 9052), (2263, 8476), (3796, 5053), (4238, 4526)]