20677761

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:367

約数の個数: 40

約数和(自身を含む): 33846120

約数和(自身を除く): 13168359

約数列:

[1, 3, 9, 13, 27, 39, 73, 81, 117, 219, 269, 351, 657, 807, 949, 1053, 1971, 2421, 2847, 3497, 5913, 7263, 8541, 10491, 19637, 21789, 25623, 31473, 58911, 76869, 94419, 176733, 255281, 283257, 530199, 765843, 1590597, 2297529, 6892587, 20677761]

約数ペア:

[(1, 20677761), (3, 6892587), (9, 2297529), (13, 1590597), (27, 765843), (39, 530199), (73, 283257), (81, 255281), (117, 176733), (219, 94419), (269, 76869), (351, 58911), (657, 31473), (807, 25623), (949, 21789), (1053, 19637), (1971, 10491), (2421, 8541), (2847, 7263), (3497, 5913)]