21000751928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{829}}^1\times {\mathrm{243583}}^1$

素因数の和:244431

約数の個数: 32

約数和(自身を含む): 42456691200

約数和(自身を除く): 21455939272

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 829, 1658, 3316, 6632, 10777, 21554, 43108, 86216, 243583, 487166, 974332, 1948664, 3166579, 6333158, 12666316, 25332632, 201930307, 403860614, 807721228, 1615442456, 2625093991, 5250187982, 10500375964, 21000751928]

約数ペア:

[(1, 21000751928), (2, 10500375964), (4, 5250187982), (8, 2625093991), (13, 1615442456), (26, 807721228), (52, 403860614), (104, 201930307), (829, 25332632), (1658, 12666316), (3316, 6333158), (6632, 3166579), (10777, 1948664), (21554, 974332), (43108, 487166), (86216, 243583)]