21640892

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59453}}^1$

素因数の和:59477

約数の個数: 24

約数和(自身を含む): 46611936

約数和(自身を除く): 24971044

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 59453, 118906, 237812, 416171, 772889, 832342, 1545778, 1664684, 3091556, 5410223, 10820446, 21640892]

約数ペア:

[(1, 21640892), (2, 10820446), (4, 5410223), (7, 3091556), (13, 1664684), (14, 1545778), (26, 832342), (28, 772889), (52, 416171), (91, 237812), (182, 118906), (364, 59453)]