21097026

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 48185280

約数和(自身を除く): 27088254

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 131, 138, 207, 262, 389, 393, 414, 778, 786, 1167, 1179, 2334, 2358, 3013, 3501, 6026, 7002, 8947, 9039, 17894, 18078, 26841, 27117, 50959, 53682, 54234, 80523, 101918, 152877, 161046, 305754, 458631, 917262, 1172057, 2344114, 3516171, 7032342, 10548513, 21097026]

約数ペア:

[(1, 21097026), (2, 10548513), (3, 7032342), (6, 3516171), (9, 2344114), (18, 1172057), (23, 917262), (46, 458631), (69, 305754), (131, 161046), (138, 152877), (207, 101918), (262, 80523), (389, 54234), (393, 53682), (414, 50959), (778, 27117), (786, 26841), (1167, 18078), (1179, 17894), (2334, 9039), (2358, 8947), (3013, 7002), (3501, 6026)]