21504470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1993}}^1$

素因数の和:2096

約数の個数: 32

約数和(自身を含む): 42208992

約数和(自身を除く): 20704522

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 1993, 2158, 3986, 5395, 9965, 10790, 19930, 25909, 51818, 129545, 165419, 259090, 330838, 827095, 1654190, 2150447, 4300894, 10752235, 21504470]

約数ペア:

[(1, 21504470), (2, 10752235), (5, 4300894), (10, 2150447), (13, 1654190), (26, 827095), (65, 330838), (83, 259090), (130, 165419), (166, 129545), (415, 51818), (830, 25909), (1079, 19930), (1993, 10790), (2158, 9965), (3986, 5395)]