21470696

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{479}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 22074904

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 431, 479, 862, 958, 1724, 1916, 3448, 3832, 5603, 6227, 11206, 12454, 22412, 24908, 44824, 49816, 206449, 412898, 825796, 1651592, 2683837, 5367674, 10735348, 21470696]

約数ペア:

[(1, 21470696), (2, 10735348), (4, 5367674), (8, 2683837), (13, 1651592), (26, 825796), (52, 412898), (104, 206449), (431, 49816), (479, 44824), (862, 24908), (958, 22412), (1724, 12454), (1916, 11206), (3448, 6227), (3832, 5603)]