28439838

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1723}}^1$

素因数の和:1869

約数の個数: 48

約数和(自身を含む): 71001216

約数和(自身を除く): 42561378

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 131, 262, 393, 786, 917, 1179, 1723, 1834, 2358, 2751, 3446, 5169, 5502, 8253, 10338, 12061, 15507, 16506, 24122, 31014, 36183, 72366, 108549, 217098, 225713, 451426, 677139, 1354278, 1579991, 2031417, 3159982, 4062834, 4739973, 9479946, 14219919, 28439838]

約数ペア:

[(1, 28439838), (2, 14219919), (3, 9479946), (6, 4739973), (7, 4062834), (9, 3159982), (14, 2031417), (18, 1579991), (21, 1354278), (42, 677139), (63, 451426), (126, 225713), (131, 217098), (262, 108549), (393, 72366), (786, 36183), (917, 31014), (1179, 24122), (1723, 16506), (1834, 15507), (2358, 12061), (2751, 10338), (3446, 8253), (5169, 5502)]