21565518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1831}}^1$

素因数の和:2000

約数の個数: 32

約数和(自身を含む): 46781952

約数和(自身を除く): 25216434

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 151, 302, 453, 906, 1831, 1963, 3662, 3926, 5493, 5889, 10986, 11778, 23803, 47606, 71409, 142818, 276481, 552962, 829443, 1658886, 3594253, 7188506, 10782759, 21565518]

約数ペア:

[(1, 21565518), (2, 10782759), (3, 7188506), (6, 3594253), (13, 1658886), (26, 829443), (39, 552962), (78, 276481), (151, 142818), (302, 71409), (453, 47606), (906, 23803), (1831, 11778), (1963, 10986), (3662, 5889), (3926, 5493)]