16720788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2971}}^1$

素因数の和:3052

約数の個数: 48

約数和(自身を含む): 45269504

約数和(自身を除く): 28548716

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 67, 84, 134, 201, 268, 402, 469, 804, 938, 1407, 1876, 2814, 2971, 5628, 5942, 8913, 11884, 17826, 20797, 35652, 41594, 62391, 83188, 124782, 199057, 249564, 398114, 597171, 796228, 1194342, 1393399, 2388684, 2786798, 4180197, 5573596, 8360394, 16720788]

約数ペア:

[(1, 16720788), (2, 8360394), (3, 5573596), (4, 4180197), (6, 2786798), (7, 2388684), (12, 1393399), (14, 1194342), (21, 796228), (28, 597171), (42, 398114), (67, 249564), (84, 199057), (134, 124782), (201, 83188), (268, 62391), (402, 41594), (469, 35652), (804, 20797), (938, 17826), (1407, 11884), (1876, 8913), (2814, 5942), (2971, 5628)]