16720578

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1013}}^1$

素因数の和:1159

約数の個数: 48

約数和(自身を含む): 41760576

約数和(自身を除く): 25039998

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 131, 262, 393, 786, 917, 1013, 1179, 1834, 2026, 2358, 2751, 3039, 5502, 6078, 7091, 8253, 9117, 14182, 16506, 18234, 21273, 42546, 63819, 127638, 132703, 265406, 398109, 796218, 928921, 1194327, 1857842, 2388654, 2786763, 5573526, 8360289, 16720578]

約数ペア:

[(1, 16720578), (2, 8360289), (3, 5573526), (6, 2786763), (7, 2388654), (9, 1857842), (14, 1194327), (18, 928921), (21, 796218), (42, 398109), (63, 265406), (126, 132703), (131, 127638), (262, 63819), (393, 42546), (786, 21273), (917, 18234), (1013, 16506), (1179, 14182), (1834, 9117), (2026, 8253), (2358, 7091), (2751, 6078), (3039, 5502)]