19691385272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{388789}}^1$

素因数の和:389295

約数の個数: 32

約数和(自身を含む): 39843199200

約数和(自身を除く): 20151813928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 487, 974, 1948, 3896, 6331, 12662, 25324, 50648, 388789, 777578, 1555156, 3110312, 5054257, 10108514, 20217028, 40434056, 189340243, 378680486, 757360972, 1514721944, 2461423159, 4922846318, 9845692636, 19691385272]

約数ペア:

[(1, 19691385272), (2, 9845692636), (4, 4922846318), (8, 2461423159), (13, 1514721944), (26, 757360972), (52, 378680486), (104, 189340243), (487, 40434056), (974, 20217028), (1948, 10108514), (3896, 5054257), (6331, 3110312), (12662, 1555156), (25324, 777578), (50648, 388789)]