21304878

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{6421}}^1$

素因数の和:6512

約数の個数: 32

約数和(自身を含む): 49320960

約数和(自身を除く): 28016082

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 79, 158, 237, 474, 553, 1106, 1659, 3318, 6421, 12842, 19263, 38526, 44947, 89894, 134841, 269682, 507259, 1014518, 1521777, 3043554, 3550813, 7101626, 10652439, 21304878]

約数ペア:

[(1, 21304878), (2, 10652439), (3, 7101626), (6, 3550813), (7, 3043554), (14, 1521777), (21, 1014518), (42, 507259), (79, 269682), (158, 134841), (237, 89894), (474, 44947), (553, 38526), (1106, 19263), (1659, 12842), (3318, 6421)]